[INFO] fetching crate hex_fmt 0.3.0...
[INFO] checking hex_fmt-0.3.0 against master#d49be02cf6d2e2a01264fcdef1e20c826710c0f5 for pr-133570-1
[INFO] extracting crate hex_fmt 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate hex_fmt 0.3.0 on toolchain d49be02cf6d2e2a01264fcdef1e20c826710c0f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hex_fmt 0.3.0
[INFO] finished tweaking crates.io crate hex_fmt 0.3.0
[INFO] tweaked toml for crates.io crate hex_fmt 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7713ff8a01f8915e734805a207c948f5defbbe438e9c8d0425f09a118b486dd
[INFO] running `Command { std: "docker" "start" "-a" "f7713ff8a01f8915e734805a207c948f5defbbe438e9c8d0425f09a118b486dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7713ff8a01f8915e734805a207c948f5defbbe438e9c8d0425f09a118b486dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7713ff8a01f8915e734805a207c948f5defbbe438e9c8d0425f09a118b486dd", kill_on_drop: false }`
[INFO] [stdout] f7713ff8a01f8915e734805a207c948f5defbbe438e9c8d0425f09a118b486dd
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b90a4197cf7442ad2ee1dcef3cc7a814517289728a4a887a2ca8cddf711b9bb4
[INFO] running `Command { std: "docker" "start" "-a" "b90a4197cf7442ad2ee1dcef3cc7a814517289728a4a887a2ca8cddf711b9bb4", kill_on_drop: false }`
[INFO] [stderr]     Checking hex_fmt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:197:38
[INFO] [stdout]     |
[INFO] [stdout] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout]     |                                      ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:197:38
[INFO] [stdout]     |
[INFO] [stdout] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout]     |                                      ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hex_fmt` (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/d49be02cf6d2e2a01264fcdef1e20c826710c0f5/bin/rustc --crate-name hex_fmt --edition=2018 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)' --check-cfg 'cfg(feature, values())' -C metadata=5ade3fcd5db90ca9 -C extra-filename=-5ade3fcd5db90ca9 --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 `hex_fmt` (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/d49be02cf6d2e2a01264fcdef1e20c826710c0f5/bin/rustc --crate-name hex_fmt --edition=2018 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)' --check-cfg 'cfg(feature, values())' -C metadata=67227e4a52e36d98 -C extra-filename=-67227e4a52e36d98 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 0)
[INFO] running `Command { std: "docker" "inspect" "b90a4197cf7442ad2ee1dcef3cc7a814517289728a4a887a2ca8cddf711b9bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b90a4197cf7442ad2ee1dcef3cc7a814517289728a4a887a2ca8cddf711b9bb4", kill_on_drop: false }`
[INFO] [stdout] b90a4197cf7442ad2ee1dcef3cc7a814517289728a4a887a2ca8cddf711b9bb4