[INFO] fetching crate core-error 0.0.1-rc4...
[INFO] testing core-error-0.0.1-rc4 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate core-error 0.0.1-rc4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate core-error 0.0.1-rc4 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core-error 0.0.1-rc4
[INFO] finished tweaking crates.io crate core-error 0.0.1-rc4
[INFO] tweaked toml for crates.io crate core-error 0.0.1-rc4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c8226539eccdfc9775bde4c968099a96e3cb329ec7ca35fcd0857b587bdca34
[INFO] running `Command { std: "docker" "start" "-a" "3c8226539eccdfc9775bde4c968099a96e3cb329ec7ca35fcd0857b587bdca34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c8226539eccdfc9775bde4c968099a96e3cb329ec7ca35fcd0857b587bdca34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c8226539eccdfc9775bde4c968099a96e3cb329ec7ca35fcd0857b587bdca34", kill_on_drop: false }`
[INFO] [stdout] 3c8226539eccdfc9775bde4c968099a96e3cb329ec7ca35fcd0857b587bdca34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d051c0d940ff3b3d348d1beb933cd0cee4935ba5af49688bc32ae6df016383a4
[INFO] running `Command { std: "docker" "start" "-a" "d051c0d940ff3b3d348d1beb933cd0cee4935ba5af49688bc32ae6df016383a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling core-error v0.0.1-rc4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `core::alloc::LayoutErr`: Name does not follow std convention, use LayoutError
[INFO] [stdout]    --> src/error_trait.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |     #[cfg(rustc_1_28_0)]  ::core::alloc::LayoutErr,
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^
[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 1.03s
[INFO] running `Command { std: "docker" "inspect" "d051c0d940ff3b3d348d1beb933cd0cee4935ba5af49688bc32ae6df016383a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d051c0d940ff3b3d348d1beb933cd0cee4935ba5af49688bc32ae6df016383a4", kill_on_drop: false }`
[INFO] [stdout] d051c0d940ff3b3d348d1beb933cd0cee4935ba5af49688bc32ae6df016383a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b66eeacf475556effa973fdc1de6b87f4e7ea388c734c8dca695789048f0768
[INFO] running `Command { std: "docker" "start" "-a" "6b66eeacf475556effa973fdc1de6b87f4e7ea388c734c8dca695789048f0768", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-error v0.0.1-rc4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `core::alloc::LayoutErr`: Name does not follow std convention, use LayoutError
[INFO] [stdout]    --> src/error_trait.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |     #[cfg(rustc_1_28_0)]  ::core::alloc::LayoutErr,
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^
[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 type alias `core::alloc::LayoutErr`: Name does not follow std convention, use LayoutError
[INFO] [stdout]    --> src/error_trait.rs:180:27
[INFO] [stdout]     |
[INFO] [stdout] 180 |     #[cfg(rustc_1_28_0)]  ::core::alloc::LayoutErr,
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^
[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 test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "6b66eeacf475556effa973fdc1de6b87f4e7ea388c734c8dca695789048f0768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b66eeacf475556effa973fdc1de6b87f4e7ea388c734c8dca695789048f0768", kill_on_drop: false }`
[INFO] [stdout] 6b66eeacf475556effa973fdc1de6b87f4e7ea388c734c8dca695789048f0768
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] de324e6fd8ba4f5774cb65e17b4bd1234237c07aa18a088056ad64def833fb84
[INFO] running `Command { std: "docker" "start" "-a" "de324e6fd8ba4f5774cb65e17b4bd1234237c07aa18a088056ad64def833fb84", 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: use of deprecated type alias `core::alloc::LayoutErr`: Name does not follow std convention, use LayoutError
[INFO] [stderr]    --> src/error_trait.rs:180:27
[INFO] [stderr]     |
[INFO] [stderr] 180 |     #[cfg(rustc_1_28_0)]  ::core::alloc::LayoutErr,
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated type alias `core::alloc::LayoutErr`: Name does not follow std convention, use LayoutError
[INFO] [stderr]    --> src/error_trait.rs:180:27
[INFO] [stderr]     |
[INFO] [stderr] 180 |     #[cfg(rustc_1_28_0)]  ::core::alloc::LayoutErr,
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/core_error-971244eac7e381f2)
[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 core-error
[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" "de324e6fd8ba4f5774cb65e17b4bd1234237c07aa18a088056ad64def833fb84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de324e6fd8ba4f5774cb65e17b4bd1234237c07aa18a088056ad64def833fb84", kill_on_drop: false }`
[INFO] [stdout] de324e6fd8ba4f5774cb65e17b4bd1234237c07aa18a088056ad64def833fb84