[INFO] cloning repository https://github.com/leomwilson/ibi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leomwilson/ibi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleomwilson%2Fibi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleomwilson%2Fibi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc3907120cc1812e06de67f3c49787d762066de5
[INFO] checking leomwilson/ibi against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleomwilson%2Fibi" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leomwilson/ibi on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leomwilson/ibi
[INFO] finished tweaking git repo https://github.com/leomwilson/ibi
[INFO] tweaked toml for git repo https://github.com/leomwilson/ibi written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/leomwilson/ibi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db23560b0366914ac6d41c8245ae422a77be6db166db45f41fd6b773f28fe08d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "db23560b0366914ac6d41c8245ae422a77be6db166db45f41fd6b773f28fe08d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db23560b0366914ac6d41c8245ae422a77be6db166db45f41fd6b773f28fe08d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db23560b0366914ac6d41c8245ae422a77be6db166db45f41fd6b773f28fe08d", kill_on_drop: false }`
[INFO] [stdout] db23560b0366914ac6d41c8245ae422a77be6db166db45f41fd6b773f28fe08d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7fcf4a637f95508ce976bd4e6d1e545fbeb113f33bdf1b609268b51ed9277803
[INFO] running `Command { std: "docker" "start" "-a" "7fcf4a637f95508ce976bd4e6d1e545fbeb113f33bdf1b609268b51ed9277803", 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]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling curl-sys v0.4.18
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking git2 v0.8.0
[INFO] [stderr]     Checking ibi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.61s
[INFO] running `Command { std: "docker" "inspect" "7fcf4a637f95508ce976bd4e6d1e545fbeb113f33bdf1b609268b51ed9277803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fcf4a637f95508ce976bd4e6d1e545fbeb113f33bdf1b609268b51ed9277803", kill_on_drop: false }`
[INFO] [stdout] 7fcf4a637f95508ce976bd4e6d1e545fbeb113f33bdf1b609268b51ed9277803