[INFO] cloning repository https://github.com/NicolasBuchin/extract_chains
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NicolasBuchin/extract_chains" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasBuchin%2Fextract_chains", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasBuchin%2Fextract_chains'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f0dd12fa8251f0e32585db7a6f043f177551c08
[INFO] checking NicolasBuchin/extract_chains against master#1fe72d35998dea48aeecaf7fc07783b0b553f24f for pr-154992-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasBuchin%2Fextract_chains" "/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/NicolasBuchin/extract_chains
[INFO] finished tweaking git repo https://github.com/NicolasBuchin/extract_chains
[INFO] tweaked toml for git repo https://github.com/NicolasBuchin/extract_chains written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NicolasBuchin/extract_chains on toolchain 1fe72d35998dea48aeecaf7fc07783b0b553f24f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/NicolasBuchin/extract_chains 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" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.7
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.5
[INFO] [stderr]   Downloaded font-kit v0.14.3
[INFO] [stderr]   Downloaded dwrote v0.11.3
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v6.0.0
[INFO] [stderr]   Downloaded gif v0.12.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.3.2
[INFO] [stderr]   Downloaded freetype-sys v0.20.1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc86bc1cf92e6bdf233b76bd359094c68259d666de1b111658f03a01ff0fe364
[INFO] running `Command { std: "docker" "start" "-a" "dc86bc1cf92e6bdf233b76bd359094c68259d666de1b111658f03a01ff0fe364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc86bc1cf92e6bdf233b76bd359094c68259d666de1b111658f03a01ff0fe364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc86bc1cf92e6bdf233b76bd359094c68259d666de1b111658f03a01ff0fe364", kill_on_drop: false }`
[INFO] [stdout] dc86bc1cf92e6bdf233b76bd359094c68259d666de1b111658f03a01ff0fe364
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e02b6cafde4768532af303a593794be1fa5ac6044d7e37837622d5d68da82843
[INFO] running `Command { std: "docker" "start" "-a" "e02b6cafde4768532af303a593794be1fa5ac6044d7e37837622d5d68da82843", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling cc v1.2.32
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v6.0.0
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking libloading v0.8.8
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking jpeg-decoder v0.3.2
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]    Compiling pathfinder_simd v0.5.5
[INFO] [stderr]    Compiling font-kit v0.14.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking anstyle-query v1.1.4
[INFO] [stderr]     Checking weezl v0.1.10
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]     Checking bytemuck v1.23.2
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking dirs v6.0.0
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]     Checking clap_builder v4.5.43
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]    Compiling freetype-sys v0.20.1
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking ttf-parser v0.20.0
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking plotters-bitmap v0.3.7
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]    Compiling clap_derive v4.5.41
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking clap v4.5.43
[INFO] [stderr]     Checking extract_chains v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/main.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs::{self, File};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/main.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/main.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs::{self, File};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/main.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.64s
[INFO] running `Command { std: "docker" "inspect" "e02b6cafde4768532af303a593794be1fa5ac6044d7e37837622d5d68da82843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e02b6cafde4768532af303a593794be1fa5ac6044d7e37837622d5d68da82843", kill_on_drop: false }`
[INFO] [stdout] e02b6cafde4768532af303a593794be1fa5ac6044d7e37837622d5d68da82843