[INFO] fetching crate preftool-env 0.2.0...
[INFO] testing preftool-env-0.2.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate preftool-env 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate preftool-env 0.2.0
[INFO] finished tweaking crates.io crate preftool-env 0.2.0
[INFO] tweaked toml for crates.io crate preftool-env 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate preftool-env 0.2.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 36 packages to latest compatible versions
[INFO] [stderr]       Adding slog-stdlog v3.0.5 (available: v4.1.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog-stdlog v3.0.5
[INFO] [stderr]   Downloaded crossbeam v0.2.12
[INFO] [stderr]   Downloaded slog v2.8.2
[INFO] [stderr]   Downloaded caseless v0.2.2
[INFO] [stderr]   Downloaded slog-scope v4.4.1
[INFO] [stderr]   Downloaded preftool v0.2.0
[INFO] [stderr]   Downloaded arc-swap v1.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c4a14ae572f9a7269cf3d110ed4e0e442f0a4e55fa5dc8a563885f0ebd96744
[INFO] running `Command { std: "docker" "start" "-a" "2c4a14ae572f9a7269cf3d110ed4e0e442f0a4e55fa5dc8a563885f0ebd96744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c4a14ae572f9a7269cf3d110ed4e0e442f0a4e55fa5dc8a563885f0ebd96744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c4a14ae572f9a7269cf3d110ed4e0e442f0a4e55fa5dc8a563885f0ebd96744", kill_on_drop: false }`
[INFO] [stdout] 2c4a14ae572f9a7269cf3d110ed4e0e442f0a4e55fa5dc8a563885f0ebd96744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 576e0b85d02713ebdc429b49bbc99107dfac6aba7ca7449733bf1ebbb2c99957
[INFO] running `Command { std: "docker" "start" "-a" "576e0b85d02713ebdc429b49bbc99107dfac6aba7ca7449733bf1ebbb2c99957", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling slog v2.8.2
[INFO] [stderr]    Compiling arc-swap v1.9.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.25
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling caseless v0.2.2
[INFO] [stderr]    Compiling erased-serde v0.3.31
[INFO] [stderr]    Compiling slog-scope v4.4.1
[INFO] [stderr]    Compiling slog-stdlog v3.0.5
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling preftool v0.2.0
[INFO] [stderr]    Compiling preftool-env v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.81s
[INFO] running `Command { std: "docker" "inspect" "576e0b85d02713ebdc429b49bbc99107dfac6aba7ca7449733bf1ebbb2c99957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "576e0b85d02713ebdc429b49bbc99107dfac6aba7ca7449733bf1ebbb2c99957", kill_on_drop: false }`
[INFO] [stdout] 576e0b85d02713ebdc429b49bbc99107dfac6aba7ca7449733bf1ebbb2c99957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f3ac14a4fc30f21607f22da30f092412206f9cf72ac7a1db9300cbea2ff7457
[INFO] running `Command { std: "docker" "start" "-a" "0f3ac14a4fc30f21607f22da30f092412206f9cf72ac7a1db9300cbea2ff7457", kill_on_drop: false }`
[INFO] [stderr]    Compiling preftool-env v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "0f3ac14a4fc30f21607f22da30f092412206f9cf72ac7a1db9300cbea2ff7457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f3ac14a4fc30f21607f22da30f092412206f9cf72ac7a1db9300cbea2ff7457", kill_on_drop: false }`
[INFO] [stdout] 0f3ac14a4fc30f21607f22da30f092412206f9cf72ac7a1db9300cbea2ff7457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b646d1ecf1e9e9b7b1d857cb9972cd22dd8bc1ca0dfe385a9d6239185ac63e45
[INFO] running `Command { std: "docker" "start" "-a" "b646d1ecf1e9e9b7b1d857cb9972cd22dd8bc1ca0dfe385a9d6239185ac63e45", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/preftool_env-fc984b0b7dd30280)
[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 preftool_env
[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" "b646d1ecf1e9e9b7b1d857cb9972cd22dd8bc1ca0dfe385a9d6239185ac63e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b646d1ecf1e9e9b7b1d857cb9972cd22dd8bc1ca0dfe385a9d6239185ac63e45", kill_on_drop: false }`
[INFO] [stdout] b646d1ecf1e9e9b7b1d857cb9972cd22dd8bc1ca0dfe385a9d6239185ac63e45