[INFO] fetching crate duration-breakdown 0.2.0...
[INFO] checking duration-breakdown-0.2.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate duration-breakdown 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate duration-breakdown 0.2.0
[INFO] finished tweaking crates.io crate duration-breakdown 0.2.0
[INFO] tweaked toml for crates.io crate duration-breakdown 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate duration-breakdown 0.2.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfc5ef29e425e4ffc74b6cb81914e00450f2f924d1cfd348f0cc07043e99cd12
[INFO] running `Command { std: "docker" "start" "-a" "bfc5ef29e425e4ffc74b6cb81914e00450f2f924d1cfd348f0cc07043e99cd12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfc5ef29e425e4ffc74b6cb81914e00450f2f924d1cfd348f0cc07043e99cd12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc5ef29e425e4ffc74b6cb81914e00450f2f924d1cfd348f0cc07043e99cd12", kill_on_drop: false }`
[INFO] [stdout] bfc5ef29e425e4ffc74b6cb81914e00450f2f924d1cfd348f0cc07043e99cd12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7af67d570b74a731fe2bc142c4bbb8be81a904d790d765a1ef16f0e9d53ae47
[INFO] running `Command { std: "docker" "start" "-a" "a7af67d570b74a731fe2bc142c4bbb8be81a904d790d765a1ef16f0e9d53ae47", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking duration-breakdown v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/lib.rs:512:9
[INFO] [stdout]     |
[INFO] [stdout] 512 |         DurationBreakdown::from(Duration::MAX);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 512 |         let _ = DurationBreakdown::from(Duration::MAX);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `Command { std: "docker" "inspect" "a7af67d570b74a731fe2bc142c4bbb8be81a904d790d765a1ef16f0e9d53ae47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7af67d570b74a731fe2bc142c4bbb8be81a904d790d765a1ef16f0e9d53ae47", kill_on_drop: false }`
[INFO] [stdout] a7af67d570b74a731fe2bc142c4bbb8be81a904d790d765a1ef16f0e9d53ae47