[INFO] fetching crate witcher 0.1.19...
[INFO] testing witcher-0.1.19 against 1.60.0 for beta-1.61-1
[INFO] extracting crate witcher 0.1.19 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate witcher 0.1.19 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate witcher 0.1.19
[INFO] finished tweaking crates.io crate witcher 0.1.19
[INFO] tweaked toml for crates.io crate witcher 0.1.19 written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] crate crates.io crate witcher 0.1.19 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gory v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdc57ceb80c61d0a6f38d2fe79aed0dd4f264c5a669493e689edfd88d7af69e0
[INFO] running `Command { std: "docker" "start" "-a" "fdc57ceb80c61d0a6f38d2fe79aed0dd4f264c5a669493e689edfd88d7af69e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdc57ceb80c61d0a6f38d2fe79aed0dd4f264c5a669493e689edfd88d7af69e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc57ceb80c61d0a6f38d2fe79aed0dd4f264c5a669493e689edfd88d7af69e0", kill_on_drop: false }`
[INFO] [stdout] fdc57ceb80c61d0a6f38d2fe79aed0dd4f264c5a669493e689edfd88d7af69e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b077f926ae2ea1425c016e6e0493f3de78aa836a073fa7fc8df751690421f5b4
[INFO] running `Command { std: "docker" "start" "-a" "b077f926ae2ea1425c016e6e0493f3de78aa836a073fa7fc8df751690421f5b4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling gory v0.1.7
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling witcher v0.1.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.22s
[INFO] running `Command { std: "docker" "inspect" "b077f926ae2ea1425c016e6e0493f3de78aa836a073fa7fc8df751690421f5b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b077f926ae2ea1425c016e6e0493f3de78aa836a073fa7fc8df751690421f5b4", kill_on_drop: false }`
[INFO] [stdout] b077f926ae2ea1425c016e6e0493f3de78aa836a073fa7fc8df751690421f5b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32a2c72e8a4cd34a531cf1b260649ede29f4b96ce396c4085920e6c11d6afc55
[INFO] running `Command { std: "docker" "start" "-a" "32a2c72e8a4cd34a531cf1b260649ede29f4b96ce396c4085920e6c11d6afc55", kill_on_drop: false }`
[INFO] [stderr]    Compiling witcher v0.1.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/lib.rs:62:33
[INFO] [stdout]     |
[INFO] [stdout] 62  |         $crate::Error::raw($msg);
[INFO] [stdout]     |                                 ^
[INFO] [stdout] ...
[INFO] [stdout] 180 |         assert_eq!("oh no!", err!("oh no!").to_string());
[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: this warning originates in the macro `err` (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/lib.rs:67:53
[INFO] [stdout]     |
[INFO] [stdout] 67  |         $crate::Error::raw(&format!($fmt, $($arg)*));
[INFO] [stdout]     |                                                     ^
[INFO] [stdout] ...
[INFO] [stdout] 181 |         assert_eq!("foo: oh no!", err!("foo: {}", "oh no!").to_string());
[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 `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "32a2c72e8a4cd34a531cf1b260649ede29f4b96ce396c4085920e6c11d6afc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a2c72e8a4cd34a531cf1b260649ede29f4b96ce396c4085920e6c11d6afc55", kill_on_drop: false }`
[INFO] [stdout] 32a2c72e8a4cd34a531cf1b260649ede29f4b96ce396c4085920e6c11d6afc55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 949b6168c9f7e3dff40b1bab8ad76717c19f5576b2f33eb27ede3d28c992749e
[INFO] running `Command { std: "docker" "start" "-a" "949b6168c9f7e3dff40b1bab8ad76717c19f5576b2f33eb27ede3d28c992749e", 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] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/lib.rs:62:33
[INFO] [stderr]     |
[INFO] [stderr] 62  |         $crate::Error::raw($msg);
[INFO] [stderr]     |                                 ^
[INFO] [stderr] ...
[INFO] [stderr] 180 |         assert_eq!("oh no!", err!("oh no!").to_string());
[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: this warning originates in the macro `err` (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/lib.rs:67:53
[INFO] [stderr]     |
[INFO] [stderr] 67  |         $crate::Error::raw(&format!($fmt, $($arg)*));
[INFO] [stderr]     |                                                     ^
[INFO] [stderr] ...
[INFO] [stderr] 181 |         assert_eq!("foo: oh no!", err!("foo: {}", "oh no!").to_string());
[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 `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `witcher` (lib test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/witcher-2bd930d0bb0c60d5)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test backtrace::tests::test_frame_equality ... ok
[INFO] [stdout] test backtrace::tests::test_omit ... ok
[INFO] [stdout] test tests::test_single ... ok
[INFO] [stdout] test tests::test_match_err ... ok
[INFO] [stdout] test backtrace::tests::test_simple_path ... ok
[INFO] [stdout] test wrapper::tests::test_pass ... ok
[INFO] [stdout] test error::tests::test_assist_methods ... ok
[INFO] [stdout] test error::tests::test_ext_and_last ... ok
[INFO] [stdout] test tests::test_bail ... ok
[INFO] [stdout] test tests::test_err ... ok
[INFO] [stdout] test error::tests::test_chained_cause ... ok
[INFO] [stdout] test error::tests::test_output_levels ... ok
[INFO] [stderr]    Doc-tests witcher
[INFO] [stdout] test tests::test_wrap ... ok
[INFO] [stdout] test wrapper::tests::test_retry_on ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - bail (line 31) ... ignored
[INFO] [stdout] test src/lib.rs - err (line 54) ... ignored
[INFO] [stdout] test src/lib.rs - wrap (line 76) ... ignored
[INFO] [stdout] test src/lib.rs - prelude (line 14) ... ok
[INFO] [stdout] test src/lib.rs - match_err (line 97) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 1.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "949b6168c9f7e3dff40b1bab8ad76717c19f5576b2f33eb27ede3d28c992749e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "949b6168c9f7e3dff40b1bab8ad76717c19f5576b2f33eb27ede3d28c992749e", kill_on_drop: false }`
[INFO] [stdout] 949b6168c9f7e3dff40b1bab8ad76717c19f5576b2f33eb27ede3d28c992749e