[INFO] cloning repository https://github.com/vicero/rust-by-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vicero/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvicero%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvicero%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a84b6652b08efd4f2a7ba9743107f0c985ed4875
[INFO] checking vicero/rust-by-example against master#0da95bd8698d9edd684e0978e888ad1bd29f19ba for pr-125923-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvicero%2Frust-by-example" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vicero/rust-by-example on toolchain 0da95bd8698d9edd684e0978e888ad1bd29f19ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0da95bd8698d9edd684e0978e888ad1bd29f19ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vicero/rust-by-example
[INFO] finished tweaking git repo https://github.com/vicero/rust-by-example
[INFO] tweaked toml for git repo https://github.com/vicero/rust-by-example written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vicero/rust-by-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0da95bd8698d9edd684e0978e888ad1bd29f19ba" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0da95bd8698d9edd684e0978e888ad1bd29f19ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e7307d22a245b76491c1aab92c1b5f56ac4288da6576e4c3782303411b42bfd
[INFO] running `Command { std: "docker" "start" "-a" "5e7307d22a245b76491c1aab92c1b5f56ac4288da6576e4c3782303411b42bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e7307d22a245b76491c1aab92c1b5f56ac4288da6576e4c3782303411b42bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e7307d22a245b76491c1aab92c1b5f56ac4288da6576e4c3782303411b42bfd", kill_on_drop: false }`
[INFO] [stdout] 5e7307d22a245b76491c1aab92c1b5f56ac4288da6576e4c3782303411b42bfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0da95bd8698d9edd684e0978e888ad1bd29f19ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff420d6c66bf53e16d1c2fe8daba0a0260f2d4c8a2e80a4c8b2e014ed68ce322
[INFO] running `Command { std: "docker" "start" "-a" "ff420d6c66bf53e16d1c2fe8daba0a0260f2d4c8a2e80a4c8b2e014ed68ce322", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "ff420d6c66bf53e16d1c2fe8daba0a0260f2d4c8a2e80a4c8b2e014ed68ce322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff420d6c66bf53e16d1c2fe8daba0a0260f2d4c8a2e80a4c8b2e014ed68ce322", kill_on_drop: false }`
[INFO] [stdout] ff420d6c66bf53e16d1c2fe8daba0a0260f2d4c8a2e80a4c8b2e014ed68ce322
[INFO] checking vicero/rust-by-example against try#b905bf41e43f8442243991ba81032e62a0c5a3f1 for pr-125923-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvicero%2Frust-by-example" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vicero/rust-by-example on toolchain b905bf41e43f8442243991ba81032e62a0c5a3f1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b905bf41e43f8442243991ba81032e62a0c5a3f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vicero/rust-by-example
[INFO] finished tweaking git repo https://github.com/vicero/rust-by-example
[INFO] tweaked toml for git repo https://github.com/vicero/rust-by-example written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/vicero/rust-by-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b905bf41e43f8442243991ba81032e62a0c5a3f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b905bf41e43f8442243991ba81032e62a0c5a3f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6422e1b510e5887ec599458d29428b50a707befc3c5abc9193551f48c007f15a
[INFO] running `Command { std: "docker" "start" "-a" "6422e1b510e5887ec599458d29428b50a707befc3c5abc9193551f48c007f15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6422e1b510e5887ec599458d29428b50a707befc3c5abc9193551f48c007f15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6422e1b510e5887ec599458d29428b50a707befc3c5abc9193551f48c007f15a", kill_on_drop: false }`
[INFO] [stdout] 6422e1b510e5887ec599458d29428b50a707befc3c5abc9193551f48c007f15a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b905bf41e43f8442243991ba81032e62a0c5a3f1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 730fe7f7472d0e7a602f626c1636bc0078be5295ba5868d811b58215b4637dd9
[INFO] running `Command { std: "docker" "start" "-a" "730fe7f7472d0e7a602f626c1636bc0078be5295ba5868d811b58215b4637dd9", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "730fe7f7472d0e7a602f626c1636bc0078be5295ba5868d811b58215b4637dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730fe7f7472d0e7a602f626c1636bc0078be5295ba5868d811b58215b4637dd9", kill_on_drop: false }`
[INFO] [stdout] 730fe7f7472d0e7a602f626c1636bc0078be5295ba5868d811b58215b4637dd9