[INFO] fetching crate impl_trait 0.1.7...
[INFO] testing impl_trait-0.1.7 against 1.55.0 for beta-1.56-1
[INFO] extracting crate impl_trait 0.1.7 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate impl_trait 0.1.7 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate impl_trait 0.1.7
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate impl_trait 0.1.7
[INFO] tweaked toml for crates.io crate impl_trait 0.1.7 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f65a87be1af0946df17fe62fddbc99dddd5fd6374eca77416a4936895bce76a
[INFO] running `Command { std: "docker" "start" "-a" "9f65a87be1af0946df17fe62fddbc99dddd5fd6374eca77416a4936895bce76a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f65a87be1af0946df17fe62fddbc99dddd5fd6374eca77416a4936895bce76a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f65a87be1af0946df17fe62fddbc99dddd5fd6374eca77416a4936895bce76a", kill_on_drop: false }`
[INFO] [stdout] 9f65a87be1af0946df17fe62fddbc99dddd5fd6374eca77416a4936895bce76a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f08ebf8a690bf3d1585e68e3c38fd4c2e5867831573603b543548098255d4541
[INFO] running `Command { std: "docker" "start" "-a" "f08ebf8a690bf3d1585e68e3c38fd4c2e5867831573603b543548098255d4541", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling impl_trait v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.07s
[INFO] running `Command { std: "docker" "inspect" "f08ebf8a690bf3d1585e68e3c38fd4c2e5867831573603b543548098255d4541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f08ebf8a690bf3d1585e68e3c38fd4c2e5867831573603b543548098255d4541", kill_on_drop: false }`
[INFO] [stdout] f08ebf8a690bf3d1585e68e3c38fd4c2e5867831573603b543548098255d4541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56c53833a97579313484097a2e5604e03177bdb7694d202e3b69bf1945053ff0
[INFO] running `Command { std: "docker" "start" "-a" "56c53833a97579313484097a2e5604e03177bdb7694d202e3b69bf1945053ff0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling trybuild v1.0.45
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling impl_trait v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 21.38s
[INFO] running `Command { std: "docker" "inspect" "56c53833a97579313484097a2e5604e03177bdb7694d202e3b69bf1945053ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56c53833a97579313484097a2e5604e03177bdb7694d202e3b69bf1945053ff0", kill_on_drop: false }`
[INFO] [stdout] 56c53833a97579313484097a2e5604e03177bdb7694d202e3b69bf1945053ff0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c80d0912acc6e077367fdf6e837228da73b1563986971c9f625fa8d85057e078
[INFO] running `Command { std: "docker" "start" "-a" "c80d0912acc6e077367fdf6e837228da73b1563986971c9f625fa8d85057e078", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/impl_trait-aad5c3b796e3ece6)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/progress.rs (/opt/rustwide/target/debug/deps/tests-92b54e0ba0a75bb1)
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling impl_trait v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling impl_trait-tests v0.0.0 (/opt/rustwide/target/tests/impl_trait)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.99s
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] test 01-parse-impl.rs [should pass] ... ok
[INFO] [stderr] test 02-not-impl.rs [should fail to compile] ... ok
[INFO] [stderr] test 03-not-trait-impl.rs [should fail to compile] ... ok
[INFO] [stderr] test 04-generics.rs [should pass] ... ok
[INFO] [stderr] test 05-where.rs [should pass] ... ok
[INFO] [stderr] test 06-impl-trait.rs [should pass] ... ok
[INFO] [stderr] test 07-docs.rs [should pass] ... ok
[INFO] [stderr] test 08-inherent-docs.rs [should pass] ... ok
[INFO] [stderr] test 09-multiple-traits.rs [should pass] ... ok
[INFO] [stderr] test 10-multiple-traits-with-generics.rs [should pass] ... ok
[INFO] [stderr] test 11-traits-generics-docs.rs [should pass] ... ok
[INFO] [stderr] test 12-combining-generics.rs [should pass] ... ok
[INFO] [stderr] test 13-trait-generics.rs [should pass] ... ok
[INFO] [stderr] test 14-where-on-trait.rs [should pass] ... ok
[INFO] [stderr] test 98-readme.rs [should pass] ... ok
[INFO] [stderr] test 99-goal.rs [should pass] ... ok
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stdout] test tests ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 25.39s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests impl_trait
[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" "c80d0912acc6e077367fdf6e837228da73b1563986971c9f625fa8d85057e078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c80d0912acc6e077367fdf6e837228da73b1563986971c9f625fa8d85057e078", kill_on_drop: false }`
[INFO] [stdout] c80d0912acc6e077367fdf6e837228da73b1563986971c9f625fa8d85057e078