[INFO] fetching crate show 0.1.1...
[INFO] checking show-0.1.1 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate show 0.1.1 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate show 0.1.1 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate show 0.1.1
[INFO] finished tweaking crates.io crate show 0.1.1
[INFO] tweaked toml for crates.io crate show 0.1.1 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c8da2d97a53449ffcf6f1d6c5dfbc4cef1ec7d4300ce52c08252a2aa4dd6ee8
[INFO] running `Command { std: "docker" "start" "-a" "3c8da2d97a53449ffcf6f1d6c5dfbc4cef1ec7d4300ce52c08252a2aa4dd6ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c8da2d97a53449ffcf6f1d6c5dfbc4cef1ec7d4300ce52c08252a2aa4dd6ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c8da2d97a53449ffcf6f1d6c5dfbc4cef1ec7d4300ce52c08252a2aa4dd6ee8", kill_on_drop: false }`
[INFO] [stdout] 3c8da2d97a53449ffcf6f1d6c5dfbc4cef1ec7d4300ce52c08252a2aa4dd6ee8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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=forbid" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20d4e0c5b7b5b2f1949e936921291048681f1f0c774e8c5da5d8ab7124485322
[INFO] running `Command { std: "docker" "start" "-a" "20d4e0c5b7b5b2f1949e936921291048681f1f0c774e8c5da5d8ab7124485322", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking show v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> lib.rs:4:38
[INFO] [stdout]    |
[INFO] [stdout] 4  |         println!("{:?}", $expression);
[INFO] [stdout]    |                                      ^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     show!(4u8, 'x', ("a", "b"));
[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 `show`
[INFO] [stdout]    = note: this warning originates in the macro `show` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "20d4e0c5b7b5b2f1949e936921291048681f1f0c774e8c5da5d8ab7124485322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d4e0c5b7b5b2f1949e936921291048681f1f0c774e8c5da5d8ab7124485322", kill_on_drop: false }`
[INFO] [stdout] 20d4e0c5b7b5b2f1949e936921291048681f1f0c774e8c5da5d8ab7124485322