[INFO] cloning repository https://github.com/yuroyoro/ucas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuroyoro/ucas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuroyoro%2Fucas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuroyoro%2Fucas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db10c5f20a123f61238e57d5e053542b6535b983
[INFO] checking yuroyoro/ucas against master#5b270e1198e911247244b035a6f06ce3af0a4420 for pr-126571-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuroyoro%2Fucas" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuroyoro/ucas on toolchain 5b270e1198e911247244b035a6f06ce3af0a4420
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b270e1198e911247244b035a6f06ce3af0a4420" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuroyoro/ucas
[INFO] finished tweaking git repo https://github.com/yuroyoro/ucas
[INFO] tweaked toml for git repo https://github.com/yuroyoro/ucas written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yuroyoro/ucas 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" "+5b270e1198e911247244b035a6f06ce3af0a4420" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded libc v0.2.70
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+5b270e1198e911247244b035a6f06ce3af0a4420" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bffe0e0d5e49628237688bb56fd0db6fa3f0b6009fe15899c4ce21f5e215582
[INFO] running `Command { std: "docker" "start" "-a" "2bffe0e0d5e49628237688bb56fd0db6fa3f0b6009fe15899c4ce21f5e215582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bffe0e0d5e49628237688bb56fd0db6fa3f0b6009fe15899c4ce21f5e215582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bffe0e0d5e49628237688bb56fd0db6fa3f0b6009fe15899c4ce21f5e215582", kill_on_drop: false }`
[INFO] [stdout] 2bffe0e0d5e49628237688bb56fd0db6fa3f0b6009fe15899c4ce21f5e215582
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+5b270e1198e911247244b035a6f06ce3af0a4420" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 550b1a4590ce6661c09c37b8a55a23249246890ba846709172a83f7dd34753d4
[INFO] running `Command { std: "docker" "start" "-a" "550b1a4590ce6661c09c37b8a55a23249246890ba846709172a83f7dd34753d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ucas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "550b1a4590ce6661c09c37b8a55a23249246890ba846709172a83f7dd34753d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "550b1a4590ce6661c09c37b8a55a23249246890ba846709172a83f7dd34753d4", kill_on_drop: false }`
[INFO] [stdout] 550b1a4590ce6661c09c37b8a55a23249246890ba846709172a83f7dd34753d4
[INFO] checking yuroyoro/ucas against try#0ecd73ac69e42f0c7915911f31169e93143ae55d for pr-126571-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuroyoro%2Fucas" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuroyoro/ucas on toolchain 0ecd73ac69e42f0c7915911f31169e93143ae55d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0ecd73ac69e42f0c7915911f31169e93143ae55d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuroyoro/ucas
[INFO] finished tweaking git repo https://github.com/yuroyoro/ucas
[INFO] tweaked toml for git repo https://github.com/yuroyoro/ucas written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yuroyoro/ucas 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" "+0ecd73ac69e42f0c7915911f31169e93143ae55d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0ecd73ac69e42f0c7915911f31169e93143ae55d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b45ed5f98fbe32da59e4b5993ec5bdfc335979a866e3e0c7e6bdae3778d2ef3
[INFO] running `Command { std: "docker" "start" "-a" "5b45ed5f98fbe32da59e4b5993ec5bdfc335979a866e3e0c7e6bdae3778d2ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b45ed5f98fbe32da59e4b5993ec5bdfc335979a866e3e0c7e6bdae3778d2ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b45ed5f98fbe32da59e4b5993ec5bdfc335979a866e3e0c7e6bdae3778d2ef3", kill_on_drop: false }`
[INFO] [stdout] 5b45ed5f98fbe32da59e4b5993ec5bdfc335979a866e3e0c7e6bdae3778d2ef3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+0ecd73ac69e42f0c7915911f31169e93143ae55d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa16e4841e8442f4469dc8a1b42f8c9b1cfac2f50e3d2d0730b7f586f95f65d7
[INFO] running `Command { std: "docker" "start" "-a" "fa16e4841e8442f4469dc8a1b42f8c9b1cfac2f50e3d2d0730b7f586f95f65d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ucas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "fa16e4841e8442f4469dc8a1b42f8c9b1cfac2f50e3d2d0730b7f586f95f65d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa16e4841e8442f4469dc8a1b42f8c9b1cfac2f50e3d2d0730b7f586f95f65d7", kill_on_drop: false }`
[INFO] [stdout] fa16e4841e8442f4469dc8a1b42f8c9b1cfac2f50e3d2d0730b7f586f95f65d7