[INFO] fetching crate pete 0.8.0...
[INFO] testing pete-0.8.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate pete 0.8.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate pete 0.8.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pete 0.8.0
[INFO] finished tweaking crates.io crate pete 0.8.0
[INFO] tweaked toml for crates.io crate pete 0.8.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate pete 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 891d5b65841db5ebc1d878f40a0d8995634e6a35c8571640b3c5004bb7f895e2
[INFO] running `Command { std: "docker" "start" "-a" "891d5b65841db5ebc1d878f40a0d8995634e6a35c8571640b3c5004bb7f895e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "891d5b65841db5ebc1d878f40a0d8995634e6a35c8571640b3c5004bb7f895e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891d5b65841db5ebc1d878f40a0d8995634e6a35c8571640b3c5004bb7f895e2", kill_on_drop: false }`
[INFO] [stdout] 891d5b65841db5ebc1d878f40a0d8995634e6a35c8571640b3c5004bb7f895e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73d725cfe4ac0d2d8ba8a14dbca9862381416d3d661d9b5452728f61832d76a3
[INFO] running `Command { std: "docker" "start" "-a" "73d725cfe4ac0d2d8ba8a14dbca9862381416d3d661d9b5452728f61832d76a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling nix v0.23.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling pete v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             internal_error!("unreachable overflow")
[INFO] [stdout]     |             --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:258:13
[INFO] [stdout]     |
[INFO] [stdout] 258 |             internal_error!("unreachable overflow")
[INFO] [stdout]     |             --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:590:25
[INFO] [stdout]     |
[INFO] [stdout] 590 |                         internal_error!("unreachable ptrace-event-stop")
[INFO] [stdout]     |                         ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:594:25
[INFO] [stdout]     |
[INFO] [stdout] 594 |                         internal_error!("unexpected ptrace-event-stop code")
[INFO] [stdout]     |                         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:641:33
[INFO] [stdout]     |
[INFO] [stdout] 641 | ...                   internal_error!("syscall-stop for `Attaching` tracee")
[INFO] [stdout]     |                       ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:651:33
[INFO] [stdout]     |
[INFO] [stdout] 651 | ...                   internal_error!("syscall-stop for `Spawning` tracee")
[INFO] [stdout]     |                       ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:657:25
[INFO] [stdout]     |
[INFO] [stdout] 657 |                         internal_error!("syscall-stop for unregistered tracee")
[INFO] [stdout]     |                         ------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:666:17
[INFO] [stdout]     |
[INFO] [stdout] 666 |                 internal_error!("unreachable `wait()` status"),
[INFO] [stdout]     |                 ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.84s
[INFO] running `Command { std: "docker" "inspect" "73d725cfe4ac0d2d8ba8a14dbca9862381416d3d661d9b5452728f61832d76a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73d725cfe4ac0d2d8ba8a14dbca9862381416d3d661d9b5452728f61832d76a3", kill_on_drop: false }`
[INFO] [stdout] 73d725cfe4ac0d2d8ba8a14dbca9862381416d3d661d9b5452728f61832d76a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2da2231bd29eaf3a12d09497f82121ff8f0d5698913d14812adc2f53ccf8e32
[INFO] running `Command { std: "docker" "start" "-a" "c2da2231bd29eaf3a12d09497f82121ff8f0d5698913d14812adc2f53ccf8e32", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling ntest_proc_macro_helper v0.7.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling ntest_test_cases v0.7.3
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             internal_error!("unreachable overflow")
[INFO] [stdout]     |             --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:258:13
[INFO] [stdout]     |
[INFO] [stdout] 258 |             internal_error!("unreachable overflow")
[INFO] [stdout]     |             --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:590:25
[INFO] [stdout]     |
[INFO] [stdout] 590 |                         internal_error!("unreachable ptrace-event-stop")
[INFO] [stdout]     |                         ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:594:25
[INFO] [stdout]     |
[INFO] [stdout] 594 |                         internal_error!("unexpected ptrace-event-stop code")
[INFO] [stdout]     |                         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:641:33
[INFO] [stdout]     |
[INFO] [stdout] 641 | ...                   internal_error!("syscall-stop for `Attaching` tracee")
[INFO] [stdout]     |                       ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:651:33
[INFO] [stdout]     |
[INFO] [stdout] 651 | ...                   internal_error!("syscall-stop for `Spawning` tracee")
[INFO] [stdout]     |                       ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:657:25
[INFO] [stdout]     |
[INFO] [stdout] 657 |                         internal_error!("syscall-stop for unregistered tracee")
[INFO] [stdout]     |                         ------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:666:17
[INFO] [stdout]     |
[INFO] [stdout] 666 |                 internal_error!("unreachable `wait()` status"),
[INFO] [stdout]     |                 ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling structopt v0.3.23
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling ntest_timeout v0.7.3
[INFO] [stderr]    Compiling ntest v0.7.3
[INFO] [stderr]    Compiling pete v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             internal_error!("unreachable overflow")
[INFO] [stdout]     |             --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:258:13
[INFO] [stdout]     |
[INFO] [stdout] 258 |             internal_error!("unreachable overflow")
[INFO] [stdout]     |             --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:590:25
[INFO] [stdout]     |
[INFO] [stdout] 590 |                         internal_error!("unreachable ptrace-event-stop")
[INFO] [stdout]     |                         ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:594:25
[INFO] [stdout]     |
[INFO] [stdout] 594 |                         internal_error!("unexpected ptrace-event-stop code")
[INFO] [stdout]     |                         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:641:33
[INFO] [stdout]     |
[INFO] [stdout] 641 | ...                   internal_error!("syscall-stop for `Attaching` tracee")
[INFO] [stdout]     |                       ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:651:33
[INFO] [stdout]     |
[INFO] [stdout] 651 | ...                   internal_error!("syscall-stop for `Spawning` tracee")
[INFO] [stdout]     |                       ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:657:25
[INFO] [stdout]     |
[INFO] [stdout] 657 |                         internal_error!("syscall-stop for unregistered tracee")
[INFO] [stdout]     |                         ------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/error.rs:52:64
[INFO] [stdout]     |
[INFO] [stdout] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stdout]     |                                                                ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/ptracer.rs:666:17
[INFO] [stdout]     |
[INFO] [stdout] 666 |                 internal_error!("unreachable `wait()` status"),
[INFO] [stdout]     |                 ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.24s
[INFO] running `Command { std: "docker" "inspect" "c2da2231bd29eaf3a12d09497f82121ff8f0d5698913d14812adc2f53ccf8e32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2da2231bd29eaf3a12d09497f82121ff8f0d5698913d14812adc2f53ccf8e32", kill_on_drop: false }`
[INFO] [stdout] c2da2231bd29eaf3a12d09497f82121ff8f0d5698913d14812adc2f53ccf8e32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7565e1f495f7a93b17fe09f9a0cfadf82bf3b3a619fdee526cd7f34015e15314
[INFO] running `Command { std: "docker" "start" "-a" "7565e1f495f7a93b17fe09f9a0cfadf82bf3b3a619fdee526cd7f34015e15314", kill_on_drop: false }`
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/error.rs:52:64
[INFO] [stderr]     |
[INFO] [stderr] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stderr]     |                                                                ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/ptracer.rs:231:13
[INFO] [stderr]     |
[INFO] [stderr] 231 |             internal_error!("unreachable overflow")
[INFO] [stderr]     |             --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stderr]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stderr]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/error.rs:52:64
[INFO] [stderr]     |
[INFO] [stderr] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stderr]     |                                                                ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/ptracer.rs:258:13
[INFO] [stderr]     |
[INFO] [stderr] 258 |             internal_error!("unreachable overflow")
[INFO] [stderr]     |             --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stderr]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stderr]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/error.rs:52:64
[INFO] [stderr]     |
[INFO] [stderr] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stderr]     |                                                                ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/ptracer.rs:590:25
[INFO] [stderr]     |
[INFO] [stderr] 590 |                         internal_error!("unreachable ptrace-event-stop")
[INFO] [stderr]     |                         ------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stderr]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stderr]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/error.rs:52:64
[INFO] [stderr]     |
[INFO] [stderr] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stderr]     |                                                                ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/ptracer.rs:594:25
[INFO] [stderr]     |
[INFO] [stderr] 594 |                         internal_error!("unexpected ptrace-event-stop code")
[INFO] [stderr]     |                         ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stderr]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stderr]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/error.rs:52:64
[INFO] [stderr]     |
[INFO] [stderr] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stderr]     |                                                                ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/ptracer.rs:641:33
[INFO] [stderr]     |
[INFO] [stderr] 641 | ...                   internal_error!("syscall-stop for `Attaching` tracee")
[INFO] [stderr]     |                       ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stderr]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stderr]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/error.rs:52:64
[INFO] [stderr]     |
[INFO] [stderr] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stderr]     |                                                                ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/ptracer.rs:651:33
[INFO] [stderr]     |
[INFO] [stderr] 651 | ...                   internal_error!("syscall-stop for `Spawning` tracee")
[INFO] [stderr]     |                       ----------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stderr]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stderr]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/error.rs:52:64
[INFO] [stderr]     |
[INFO] [stderr] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stderr]     |                                                                ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/ptracer.rs:657:25
[INFO] [stderr]     |
[INFO] [stderr] 657 |                         internal_error!("syscall-stop for unregistered tracee")
[INFO] [stderr]     |                         ------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stderr]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `internal_error`
[INFO] [stderr]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/error.rs:52:64
[INFO] [stderr]     |
[INFO] [stderr] 52  |         return Err($crate::error::Error::Internal($ctx.into()));
[INFO] [stderr]     |                                                                ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/ptracer.rs:666:17
[INFO] [stderr]     |
[INFO] [stderr] 666 |                 internal_error!("unreachable `wait()` status"),
[INFO] [stderr]     |                 ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: this warning originates in the macro `internal_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `pete` (lib) generated 8 warnings
[INFO] [stderr] warning: `pete` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pete-3df7df1384ea1a4e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pete
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7565e1f495f7a93b17fe09f9a0cfadf82bf3b3a619fdee526cd7f34015e15314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7565e1f495f7a93b17fe09f9a0cfadf82bf3b3a619fdee526cd7f34015e15314", kill_on_drop: false }`
[INFO] [stdout] 7565e1f495f7a93b17fe09f9a0cfadf82bf3b3a619fdee526cd7f34015e15314