[INFO] fetching crate brightness 0.3.1...
[INFO] testing brightness-0.3.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate brightness 0.3.1 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate brightness 0.3.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate brightness 0.3.1
[INFO] finished tweaking crates.io crate brightness 0.3.1
[INFO] tweaked toml for crates.io crate brightness 0.3.1 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate crates.io crate brightness 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd0143126fe593efc78d874eb08c00fb620507165ddf9254cd68dc0ea7ea5330
[INFO] running `Command { std: "docker" "start" "-a" "dd0143126fe593efc78d874eb08c00fb620507165ddf9254cd68dc0ea7ea5330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd0143126fe593efc78d874eb08c00fb620507165ddf9254cd68dc0ea7ea5330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd0143126fe593efc78d874eb08c00fb620507165ddf9254cd68dc0ea7ea5330", kill_on_drop: false }`
[INFO] [stdout] dd0143126fe593efc78d874eb08c00fb620507165ddf9254cd68dc0ea7ea5330
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8ef9b60b028e3db3d2f026c16ada1cef1db1cf42dd9d9c2f198d4cd78b0eb73
[INFO] running `Command { std: "docker" "start" "-a" "a8ef9b60b028e3db3d2f026c16ada1cef1db1cf42dd9d9c2f198d4cd78b0eb73", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling nb-connect v1.2.0
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling enumflags2_derive v0.6.4
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling enumflags2 v0.6.4
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling zvariant_derive v2.7.0
[INFO] [stderr]    Compiling zbus_macros v1.9.1
[INFO] [stderr]    Compiling zvariant v2.7.0
[INFO] [stderr]    Compiling zbus v1.9.1
[INFO] [stderr]    Compiling brightness v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.66s
[INFO] running `Command { std: "docker" "inspect" "a8ef9b60b028e3db3d2f026c16ada1cef1db1cf42dd9d9c2f198d4cd78b0eb73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8ef9b60b028e3db3d2f026c16ada1cef1db1cf42dd9d9c2f198d4cd78b0eb73", kill_on_drop: false }`
[INFO] [stdout] a8ef9b60b028e3db3d2f026c16ada1cef1db1cf42dd9d9c2f198d4cd78b0eb73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 726dd0f4687d451dd2a63771c5dbfe5c4371d049322c4be28c0a7e5a16f9921e
[INFO] running `Command { std: "docker" "start" "-a" "726dd0f4687d451dd2a63771c5dbfe5c4371d049322c4be28c0a7e5a16f9921e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling brightness v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "726dd0f4687d451dd2a63771c5dbfe5c4371d049322c4be28c0a7e5a16f9921e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "726dd0f4687d451dd2a63771c5dbfe5c4371d049322c4be28c0a7e5a16f9921e", kill_on_drop: false }`
[INFO] [stdout] 726dd0f4687d451dd2a63771c5dbfe5c4371d049322c4be28c0a7e5a16f9921e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 32c7add920cb094162bc3877fc5d21a64ca26f362e7157b8de9454153ac9191a
[INFO] running `Command { std: "docker" "start" "-a" "32c7add920cb094162bc3877fc5d21a64ca26f362e7157b8de9454153ac9191a", 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]     Finished test [unoptimized + debuginfo] target(s) in 2.52s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/brightness-33d32c70ae742db5)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests brightness
[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] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "32c7add920cb094162bc3877fc5d21a64ca26f362e7157b8de9454153ac9191a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c7add920cb094162bc3877fc5d21a64ca26f362e7157b8de9454153ac9191a", kill_on_drop: false }`
[INFO] [stdout] 32c7add920cb094162bc3877fc5d21a64ca26f362e7157b8de9454153ac9191a