[INFO] cloning repository https://github.com/fteychene/ferris-in-errorland
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fteychene/ferris-in-errorland" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffteychene%2Fferris-in-errorland", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffteychene%2Fferris-in-errorland'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98b09daf112ea6027c535ea1d8da5d31fe00f547
[INFO] checking fteychene/ferris-in-errorland against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffteychene%2Fferris-in-errorland" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fteychene/ferris-in-errorland on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fteychene/ferris-in-errorland
[INFO] finished tweaking git repo https://github.com/fteychene/ferris-in-errorland
[INFO] tweaked toml for git repo https://github.com/fteychene/ferris-in-errorland written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/fteychene/ferris-in-errorland already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df3b7ba4bea3012d3ba94b3bbd25dc6d1c36699dde0523074fdf21ee2d1c8263
[INFO] running `Command { std: "docker" "start" "-a" "df3b7ba4bea3012d3ba94b3bbd25dc6d1c36699dde0523074fdf21ee2d1c8263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df3b7ba4bea3012d3ba94b3bbd25dc6d1c36699dde0523074fdf21ee2d1c8263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df3b7ba4bea3012d3ba94b3bbd25dc6d1c36699dde0523074fdf21ee2d1c8263", kill_on_drop: false }`
[INFO] [stdout] df3b7ba4bea3012d3ba94b3bbd25dc6d1c36699dde0523074fdf21ee2d1c8263
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7274fd95e6597c101f8a29d5ace492fe411fe9fda8200e214e2f81d6bb020da4
[INFO] running `Command { std: "docker" "start" "-a" "7274fd95e6597c101f8a29d5ace492fe411fe9fda8200e214e2f81d6bb020da4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking std v0.1.0 (/opt/rustwide/workdir/std)
[INFO] [stderr]     Checking anyhow v0.1.0 (/opt/rustwide/workdir/anyhow)
[INFO] [stderr]     Checking thiserror v0.1.0 (/opt/rustwide/workdir/thiserror)
[INFO] [stderr]     Checking diptych v0.1.0 (/opt/rustwide/workdir/diptych)
[INFO] [stderr]     Checking base v0.1.0 (/opt/rustwide/workdir/base)
[INFO] [stderr]     Checking snafu v0.1.0 (/opt/rustwide/workdir/snafu)
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking failure v0.1.0 (/opt/rustwide/workdir/failure)
[INFO] [stderr]     Checking error-chain v0.1.0 (/opt/rustwide/workdir/error-chain)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.33s
[INFO] running `Command { std: "docker" "inspect" "7274fd95e6597c101f8a29d5ace492fe411fe9fda8200e214e2f81d6bb020da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7274fd95e6597c101f8a29d5ace492fe411fe9fda8200e214e2f81d6bb020da4", kill_on_drop: false }`
[INFO] [stdout] 7274fd95e6597c101f8a29d5ace492fe411fe9fda8200e214e2f81d6bb020da4