[INFO] cloning repository https://github.com/dvshapkin/fs-helper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dvshapkin/fs-helper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvshapkin%2Ffs-helper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvshapkin%2Ffs-helper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80151a40e7e8b6723766e32e451654a4534f2fbb
[INFO] checking dvshapkin/fs-helper against master#8365fcb2b840c95eeb0bc377af8bd498fad22245 for pr-145605
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvshapkin%2Ffs-helper" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dvshapkin/fs-helper
[INFO] finished tweaking git repo https://github.com/dvshapkin/fs-helper
[INFO] tweaked toml for git repo https://github.com/dvshapkin/fs-helper written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dvshapkin/fs-helper on toolchain 8365fcb2b840c95eeb0bc377af8bd498fad22245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dvshapkin/fs-helper 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" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7da487267867ed05071ba17abe42a8f3a1d55f6c193ffa01cacb8b420c203f3e
[INFO] running `Command { std: "docker" "start" "-a" "7da487267867ed05071ba17abe42a8f3a1d55f6c193ffa01cacb8b420c203f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7da487267867ed05071ba17abe42a8f3a1d55f6c193ffa01cacb8b420c203f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7da487267867ed05071ba17abe42a8f3a1d55f6c193ffa01cacb8b420c203f3e", kill_on_drop: false }`
[INFO] [stdout] 7da487267867ed05071ba17abe42a8f3a1d55f6c193ffa01cacb8b420c203f3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8365fcb2b840c95eeb0bc377af8bd498fad22245" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed7077ac77daaa3ac0e551f0522c7a487058f7f4e48a6dd09a33c00904f03d61
[INFO] running `Command { std: "docker" "start" "-a" "ed7077ac77daaa3ac0e551f0522c7a487058f7f4e48a6dd09a33c00904f03d61", kill_on_drop: false }`
[INFO] [stderr]     Checking fs-helper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `kind` and `cause` are never read
[INFO] [stdout]   --> src/result.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 14 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     cause: Box<dyn std::error::Error>
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `cause` are never read
[INFO] [stdout]   --> src/result.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 14 |     kind: ErrorKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     cause: Box<dyn std::error::Error>
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fs-helper` (lib); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/8365fcb2b840c95eeb0bc377af8bd498fad22245/bin/rustc --crate-name fs_helper --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=ce5b4191e467963d -C extra-filename=-4a5b12517a621d20 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `fs-helper` (lib test); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/8365fcb2b840c95eeb0bc377af8bd498fad22245/bin/rustc --crate-name fs_helper --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=022c152510dcd810 -C extra-filename=-fa0515dd2d7115a2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ed7077ac77daaa3ac0e551f0522c7a487058f7f4e48a6dd09a33c00904f03d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed7077ac77daaa3ac0e551f0522c7a487058f7f4e48a6dd09a33c00904f03d61", kill_on_drop: false }`
[INFO] [stdout] ed7077ac77daaa3ac0e551f0522c7a487058f7f4e48a6dd09a33c00904f03d61