[INFO] cloning repository https://github.com/camp81/exam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/camp81/exam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamp81%2Fexam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamp81%2Fexam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d710c15c39aa2511226cf2ba4ba0f7065af99a4
[INFO] checking camp81/exam against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcamp81%2Fexam" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/camp81/exam on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/camp81/exam
[INFO] finished tweaking git repo https://github.com/camp81/exam
[INFO] tweaked toml for git repo https://github.com/camp81/exam written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/camp81/exam already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gcc v0.3.28
[INFO] [stderr]   Downloaded nodrop v0.1.6
[INFO] [stderr]   Downloaded docopt v0.6.80
[INFO] [stderr]   Downloaded regex v0.1.71
[INFO] [stderr]   Downloaded regex-syntax v0.3.3
[INFO] [stderr]   Downloaded aho-corasick v0.5.2
[INFO] [stderr]   Downloaded winapi v0.2.7
[INFO] [stderr]   Downloaded thread_local v0.2.6
[INFO] [stderr]   Downloaded arrayvec v0.3.16
[INFO] [stderr]   Downloaded odds v0.2.14
[INFO] [stderr]   Downloaded libc v0.2.11
[INFO] [stderr]   Downloaded tiny-keccak v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", 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] 09acc8f6ca42b1bb79c8ecd5e059c035c4c77a0f8febf5afe7b4173f47930aec
[INFO] running `Command { std: "docker" "start" "-a" "09acc8f6ca42b1bb79c8ecd5e059c035c4c77a0f8febf5afe7b4173f47930aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09acc8f6ca42b1bb79c8ecd5e059c035c4c77a0f8febf5afe7b4173f47930aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09acc8f6ca42b1bb79c8ecd5e059c035c4c77a0f8febf5afe7b4173f47930aec", kill_on_drop: false }`
[INFO] [stdout] 09acc8f6ca42b1bb79c8ecd5e059c035c4c77a0f8febf5afe7b4173f47930aec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] 4618af55b2b04904884a27c1f2b1e95445047a15063bd9bbd66e95c00b57461d
[INFO] running `Command { std: "docker" "start" "-a" "4618af55b2b04904884a27c1f2b1e95445047a15063bd9bbd66e95c00b57461d", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "4618af55b2b04904884a27c1f2b1e95445047a15063bd9bbd66e95c00b57461d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4618af55b2b04904884a27c1f2b1e95445047a15063bd9bbd66e95c00b57461d", kill_on_drop: false }`
[INFO] [stdout] 4618af55b2b04904884a27c1f2b1e95445047a15063bd9bbd66e95c00b57461d