[INFO] cloning repository https://github.com/yitaooo/task2-fileio-sys-prog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yitaooo/task2-fileio-sys-prog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyitaooo%2Ftask2-fileio-sys-prog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyitaooo%2Ftask2-fileio-sys-prog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d85fbba2589f7c9360904e23e6facdde808691e
[INFO] checking yitaooo/task2-fileio-sys-prog against master#c1feb3eceef7d5f0126c309a87062cf413fe0a25 for pr-121053
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyitaooo%2Ftask2-fileio-sys-prog" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yitaooo/task2-fileio-sys-prog on toolchain c1feb3eceef7d5f0126c309a87062cf413fe0a25
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yitaooo/task2-fileio-sys-prog
[INFO] finished tweaking git repo https://github.com/yitaooo/task2-fileio-sys-prog
[INFO] tweaked toml for git repo https://github.com/yitaooo/task2-fileio-sys-prog written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yitaooo/task2-fileio-sys-prog 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" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 952e7b5e42a001aa33cd8e94ecdf62d8d9dfa2ae36f5fdc1c954f9b1a09c29b1
[INFO] running `Command { std: "docker" "start" "-a" "952e7b5e42a001aa33cd8e94ecdf62d8d9dfa2ae36f5fdc1c954f9b1a09c29b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "952e7b5e42a001aa33cd8e94ecdf62d8d9dfa2ae36f5fdc1c954f9b1a09c29b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952e7b5e42a001aa33cd8e94ecdf62d8d9dfa2ae36f5fdc1c954f9b1a09c29b1", kill_on_drop: false }`
[INFO] [stdout] 952e7b5e42a001aa33cd8e94ecdf62d8d9dfa2ae36f5fdc1c954f9b1a09c29b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc41fe65f18b5938b3233f076ddfe3ca91dc4fdf882fb24b753adad15628ae8f
[INFO] running `Command { std: "docker" "start" "-a" "bc41fe65f18b5938b3233f076ddfe3ca91dc4fdf882fb24b753adad15628ae8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling fuser v0.11.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling zerocopy-derive v0.3.1
[INFO] [stderr]     Checking zerocopy v0.6.1
[INFO] [stderr]     Checking memfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "bc41fe65f18b5938b3233f076ddfe3ca91dc4fdf882fb24b753adad15628ae8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc41fe65f18b5938b3233f076ddfe3ca91dc4fdf882fb24b753adad15628ae8f", kill_on_drop: false }`
[INFO] [stdout] bc41fe65f18b5938b3233f076ddfe3ca91dc4fdf882fb24b753adad15628ae8f