[INFO] fetching crate gbsdiff 1.0.1...
[INFO] checking gbsdiff-1.0.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate gbsdiff 1.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate gbsdiff 1.0.1
[INFO] finished tweaking crates.io crate gbsdiff 1.0.1
[INFO] tweaked toml for crates.io crate gbsdiff 1.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gbsdiff 1.0.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gbsdiff 1.0.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gb-cpu-sim v1.1.0
[INFO] [stderr]   Downloaded slicedisplay v0.2.2
[INFO] [stderr]   Downloaded argh_shared v0.1.13
[INFO] [stderr]   Downloaded supports-color v3.0.2
[INFO] [stderr]   Downloaded owo-colors v4.1.0
[INFO] [stderr]   Downloaded argh v0.1.13
[INFO] [stderr]   Downloaded argh_derive v0.1.13
[INFO] [stderr]   Downloaded try-from-discrim v1.0.0
[INFO] [stderr]   Downloaded rust-fuzzy-search v0.1.1
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 117940a762319b7208b3f70b6a805c118a7e99366379a749dc6a0343848d8d7d
[INFO] running `Command { std: "docker" "start" "-a" "117940a762319b7208b3f70b6a805c118a7e99366379a749dc6a0343848d8d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "117940a762319b7208b3f70b6a805c118a7e99366379a749dc6a0343848d8d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "117940a762319b7208b3f70b6a805c118a7e99366379a749dc6a0343848d8d7d", kill_on_drop: false }`
[INFO] [stdout] 117940a762319b7208b3f70b6a805c118a7e99366379a749dc6a0343848d8d7d
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2f8016b3163cc9a064b3a5a607c3961fe2725914d9fdbae563cc14f3dce1597
[INFO] running `Command { std: "docker" "start" "-a" "e2f8016b3163cc9a064b3a5a607c3961fe2725914d9fdbae563cc14f3dce1597", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking is_ci v1.2.0
[INFO] [stderr]    Compiling owo-colors v4.1.0
[INFO] [stderr]    Compiling argh_shared v0.1.13
[INFO] [stderr]     Checking rust-fuzzy-search v0.1.1
[INFO] [stderr]     Checking slicedisplay v0.2.2
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking supports-color v3.0.2
[INFO] [stderr]    Compiling syn v2.0.92
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking is-terminal v0.4.13
[INFO] [stderr]     Checking supports-color v2.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling try-from-discrim v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling structmeta-derive v0.3.0
[INFO] [stderr]    Compiling argh_derive v0.1.13
[INFO] [stderr]     Checking gb-cpu-sim v1.1.0
[INFO] [stderr]    Compiling structmeta v0.3.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling parse-display-derive v0.9.1
[INFO] [stderr]     Checking parse-display v0.9.1
[INFO] [stderr]     Checking argh v0.1.13
[INFO] [stderr]     Checking gbsdiff v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `double_speed` is never used
[INFO] [stdout]   --> src/gbs.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<'gbs> Gbs<'gbs> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn double_speed(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `double_speed` is never used
[INFO] [stdout]   --> src/gbs.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<'gbs> Gbs<'gbs> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn double_speed(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.99s
[INFO] running `Command { std: "docker" "inspect" "e2f8016b3163cc9a064b3a5a607c3961fe2725914d9fdbae563cc14f3dce1597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f8016b3163cc9a064b3a5a607c3961fe2725914d9fdbae563cc14f3dce1597", kill_on_drop: false }`
[INFO] [stdout] e2f8016b3163cc9a064b3a5a607c3961fe2725914d9fdbae563cc14f3dce1597