[INFO] fetching crate trait_exerci 0.3.0...
[INFO] checking trait_exerci-0.3.0 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate trait_exerci 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate trait_exerci 0.3.0
[INFO] finished tweaking crates.io crate trait_exerci 0.3.0
[INFO] tweaked toml for crates.io crate trait_exerci 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate trait_exerci 0.3.0 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trait_exerci 0.3.0 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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3669a8557b3b1a3f233cdec29beb38398bda37260ca2499889e8144eb013b53f
[INFO] running `Command { std: "docker" "start" "-a" "3669a8557b3b1a3f233cdec29beb38398bda37260ca2499889e8144eb013b53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3669a8557b3b1a3f233cdec29beb38398bda37260ca2499889e8144eb013b53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3669a8557b3b1a3f233cdec29beb38398bda37260ca2499889e8144eb013b53f", kill_on_drop: false }`
[INFO] [stdout] 3669a8557b3b1a3f233cdec29beb38398bda37260ca2499889e8144eb013b53f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6cc5501c03ab5b2e39ab74c97486785d1faa98cd6082cfd5b018dc9bc948688
[INFO] running `Command { std: "docker" "start" "-a" "e6cc5501c03ab5b2e39ab74c97486785d1faa98cd6082cfd5b018dc9bc948688", kill_on_drop: false }`
[INFO] [stderr]     Checking trait_exerci v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get_data` is never used
[INFO] [stdout]   --> examples/trait_with_default_method.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  7 |     pub trait TraitCanal {
[INFO] [stdout]    |               ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 10 |         fn get_data(&self) -> u32;
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "e6cc5501c03ab5b2e39ab74c97486785d1faa98cd6082cfd5b018dc9bc948688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6cc5501c03ab5b2e39ab74c97486785d1faa98cd6082cfd5b018dc9bc948688", kill_on_drop: false }`
[INFO] [stdout] e6cc5501c03ab5b2e39ab74c97486785d1faa98cd6082cfd5b018dc9bc948688