[INFO] fetching crate core-error 0.0.1-rc4...
[INFO] testing core-error-0.0.1-rc4 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate core-error 0.0.1-rc4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate core-error 0.0.1-rc4 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32c0be5e4ef33ba744ad7b4e69037ac53cc6e202044b78244ca9167b966917e7
[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" "32c0be5e4ef33ba744ad7b4e69037ac53cc6e202044b78244ca9167b966917e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32c0be5e4ef33ba744ad7b4e69037ac53cc6e202044b78244ca9167b966917e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c0be5e4ef33ba744ad7b4e69037ac53cc6e202044b78244ca9167b966917e7", kill_on_drop: false }`
[INFO] [stdout] 32c0be5e4ef33ba744ad7b4e69037ac53cc6e202044b78244ca9167b966917e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", 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] 57f3daaec8fa6ad62e353de2288119f293515baeb4148a166b016d96c605e0c5
[INFO] running `Command { std: "docker" "start" "-a" "57f3daaec8fa6ad62e353de2288119f293515baeb4148a166b016d96c605e0c5", 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:180:42
[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 0.50s
[INFO] running `Command { std: "docker" "inspect" "57f3daaec8fa6ad62e353de2288119f293515baeb4148a166b016d96c605e0c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f3daaec8fa6ad62e353de2288119f293515baeb4148a166b016d96c605e0c5", kill_on_drop: false }`
[INFO] [stdout] 57f3daaec8fa6ad62e353de2288119f293515baeb4148a166b016d96c605e0c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da32f17f54be38cc5616e31726d4482fd71677154c3f3addc53b047fccdf7c31
[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" "da32f17f54be38cc5616e31726d4482fd71677154c3f3addc53b047fccdf7c31", 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:180:42
[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:180:42
[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 0.48s
[INFO] running `Command { std: "docker" "inspect" "da32f17f54be38cc5616e31726d4482fd71677154c3f3addc53b047fccdf7c31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da32f17f54be38cc5616e31726d4482fd71677154c3f3addc53b047fccdf7c31", kill_on_drop: false }`
[INFO] [stdout] da32f17f54be38cc5616e31726d4482fd71677154c3f3addc53b047fccdf7c31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8be2d8e8dd501986cd7b420550599c6241a201efbc4fe9778212a590c486acde
[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" "8be2d8e8dd501986cd7b420550599c6241a201efbc4fe9778212a590c486acde", kill_on_drop: false }`
[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:180:42
[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: `core-error` (lib) generated 1 warning
[INFO] [stderr] warning: `core-error` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[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" "8be2d8e8dd501986cd7b420550599c6241a201efbc4fe9778212a590c486acde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be2d8e8dd501986cd7b420550599c6241a201efbc4fe9778212a590c486acde", kill_on_drop: false }`
[INFO] [stdout] 8be2d8e8dd501986cd7b420550599c6241a201efbc4fe9778212a590c486acde