[INFO] cloning repository https://github.com/jculverhouse/fibonacci_race
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jculverhouse/fibonacci_race" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjculverhouse%2Ffibonacci_race", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjculverhouse%2Ffibonacci_race'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67267e7289d85a30189ff9bc78f3f738863b8084
[INFO] building jculverhouse/fibonacci_race against master#a7f375789bab1a4e4a291c963081a8ca7d2b6bd7 for pr-93180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjculverhouse%2Ffibonacci_race" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jculverhouse/fibonacci_race on toolchain a7f375789bab1a4e4a291c963081a8ca7d2b6bd7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jculverhouse/fibonacci_race
[INFO] finished tweaking git repo https://github.com/jculverhouse/fibonacci_race
[INFO] tweaked toml for git repo https://github.com/jculverhouse/fibonacci_race written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/jculverhouse/fibonacci_race already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "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-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e97ffd273c8e9ada2966a125523c02fe585187a011a7c13fea522ab69a137c05
[INFO] running `Command { std: "docker" "start" "-a" "e97ffd273c8e9ada2966a125523c02fe585187a011a7c13fea522ab69a137c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e97ffd273c8e9ada2966a125523c02fe585187a011a7c13fea522ab69a137c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97ffd273c8e9ada2966a125523c02fe585187a011a7c13fea522ab69a137c05", kill_on_drop: false }`
[INFO] [stdout] e97ffd273c8e9ada2966a125523c02fe585187a011a7c13fea522ab69a137c05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 495f796eb1d08f97fb6d11369490e8456bb174904c44f2d05e09f091b214808c
[INFO] running `Command { std: "docker" "start" "-a" "495f796eb1d08f97fb6d11369490e8456bb174904c44f2d05e09f091b214808c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.7
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling waker-fn v1.0.0
[INFO] [stderr]    Compiling fastrand v1.3.3
[INFO] [stderr]    Compiling parking v1.0.5
[INFO] [stderr]    Compiling event-listener v2.2.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling concurrent-queue v1.1.1
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling async-channel v1.1.1
[INFO] [stderr]    Compiling futures-lite v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling blocking v0.4.7
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling smol v0.1.18
[INFO] [stderr]    Compiling async-std v1.6.2
[INFO] [stderr]    Compiling cached_proc_macro v0.1.2
[INFO] [stderr]    Compiling cached v0.16.0
[INFO] [stderr]    Compiling fibonacci_race v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.37s
[INFO] running `Command { std: "docker" "inspect" "495f796eb1d08f97fb6d11369490e8456bb174904c44f2d05e09f091b214808c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "495f796eb1d08f97fb6d11369490e8456bb174904c44f2d05e09f091b214808c", kill_on_drop: false }`
[INFO] [stdout] 495f796eb1d08f97fb6d11369490e8456bb174904c44f2d05e09f091b214808c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b031c21be81218c0507ed8457968081825a487daea0a3d9c2e2fad1a29fbeef
[INFO] running `Command { std: "docker" "start" "-a" "7b031c21be81218c0507ed8457968081825a487daea0a3d9c2e2fad1a29fbeef", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fibonacci_race v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "7b031c21be81218c0507ed8457968081825a487daea0a3d9c2e2fad1a29fbeef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b031c21be81218c0507ed8457968081825a487daea0a3d9c2e2fad1a29fbeef", kill_on_drop: false }`
[INFO] [stdout] 7b031c21be81218c0507ed8457968081825a487daea0a3d9c2e2fad1a29fbeef