[INFO] fetching crate derive-error 0.0.4...
[INFO] checking derive-error-0.0.4 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate derive-error 0.0.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate derive-error 0.0.4 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate derive-error 0.0.4
[INFO] finished tweaking crates.io crate derive-error 0.0.4
[INFO] tweaked toml for crates.io crate derive-error 0.0.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9c3ded8aebbd5173f05606d9fab0a268778731c11a8028a3ba775b288e33f61d
[INFO] running `Command { std: "docker" "start" "-a" "9c3ded8aebbd5173f05606d9fab0a268778731c11a8028a3ba775b288e33f61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c3ded8aebbd5173f05606d9fab0a268778731c11a8028a3ba775b288e33f61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3ded8aebbd5173f05606d9fab0a268778731c11a8028a3ba775b288e33f61d", kill_on_drop: false }`
[INFO] [stdout] 9c3ded8aebbd5173f05606d9fab0a268778731c11a8028a3ba775b288e33f61d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] caaa48830e23d6768e01ba9e395fe7da09369331e323575e785af4f152362e9d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "caaa48830e23d6768e01ba9e395fe7da09369331e323575e785af4f152362e9d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]     Checking case v0.1.0
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]     Checking derive-error v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stdout]    --> src/error.rs:202:40
[INFO] [stdout]     |
[INFO] [stdout] 202 |                         let doc = line.trim_left_matches("///");
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stdout]    --> src/error.rs:202:40
[INFO] [stdout]     |
[INFO] [stdout] 202 |                         let doc = line.trim_left_matches("///");
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]     Checking rspec v1.0.0-beta.4
[INFO] [stdout] warning: variant is never constructed: `Msg`
[INFO] [stdout]   --> tests/behaviour.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |                 Msg
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stdout]    --> src/error.rs:202:40
[INFO] [stdout]     |
[INFO] [stdout] 202 |                         let doc = line.trim_left_matches("///");
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.52s
[INFO] running `Command { std: "docker" "inspect" "caaa48830e23d6768e01ba9e395fe7da09369331e323575e785af4f152362e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caaa48830e23d6768e01ba9e395fe7da09369331e323575e785af4f152362e9d", kill_on_drop: false }`
[INFO] [stdout] caaa48830e23d6768e01ba9e395fe7da09369331e323575e785af4f152362e9d