[INFO] fetching crate blunders-engine 0.1.0...
[INFO] checking blunders-engine-0.1.0 against master#ba412a6e70ac84641be7764d088acabd0eb3fa39 for pr-145457
[INFO] extracting crate blunders-engine 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate blunders-engine 0.1.0
[INFO] finished tweaking crates.io crate blunders-engine 0.1.0
[INFO] tweaked toml for crates.io crate blunders-engine 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate blunders-engine 0.1.0 on toolchain ba412a6e70ac84641be7764d088acabd0eb3fa39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 82 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41c055ea8a95bbbb1821393542810cf9d80423cc05668b10fca3b8accf7aecd7
[INFO] running `Command { std: "docker" "start" "-a" "41c055ea8a95bbbb1821393542810cf9d80423cc05668b10fca3b8accf7aecd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41c055ea8a95bbbb1821393542810cf9d80423cc05668b10fca3b8accf7aecd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c055ea8a95bbbb1821393542810cf9d80423cc05668b10fca3b8accf7aecd7", kill_on_drop: false }`
[INFO] [stdout] 41c055ea8a95bbbb1821393542810cf9d80423cc05668b10fca3b8accf7aecd7
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a09295ee0ca8d9aee6736aeb16d75ed8fbcfb047fc16d7469f846d8983d3bc6d
[INFO] running `Command { std: "docker" "start" "-a" "a09295ee0ca8d9aee6736aeb16d75ed8fbcfb047fc16d7469f846d8983d3bc6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking blunders-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` 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: field `threads` is never read
[INFO] [stdout]   --> src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `serde_derive` (lib)
[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/ba412a6e70ac84641be7764d088acabd0eb3fa39/bin/rustc --crate-name serde_derive --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_derive-1.0.219/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no --cfg 'feature="default"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "deserialize_in_place"))' -C metadata=d9de88fbb8b00abf -C extra-filename=-c0203541a651a34a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0a3b3fe24b469f09.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-e098ac900c08002b.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-3e6e9e40389a1a30.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "a09295ee0ca8d9aee6736aeb16d75ed8fbcfb047fc16d7469f846d8983d3bc6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a09295ee0ca8d9aee6736aeb16d75ed8fbcfb047fc16d7469f846d8983d3bc6d", kill_on_drop: false }`
[INFO] [stdout] a09295ee0ca8d9aee6736aeb16d75ed8fbcfb047fc16d7469f846d8983d3bc6d