[INFO] fetching crate flaky-finder 0.2.22...
[INFO] checking flaky-finder-0.2.22 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate flaky-finder 0.2.22 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate flaky-finder 0.2.22 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flaky-finder 0.2.22
[INFO] finished tweaking crates.io crate flaky-finder 0.2.22
[INFO] tweaked toml for crates.io crate flaky-finder 0.2.22 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate flaky-finder 0.2.22 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console v0.9.0
[INFO] [stderr]   Downloaded number_prefix v0.3.0
[INFO] [stderr]   Downloaded clicolors-control v1.0.1
[INFO] [stderr]   Downloaded termios v0.3.1
[INFO] [stderr]   Downloaded num_cpus v1.10.1
[INFO] [stderr]   Downloaded threadpool v1.7.1
[INFO] [stderr]   Downloaded cfg-if v0.1.9
[INFO] [stderr]   Downloaded bitflags v1.1.0
[INFO] [stderr]   Downloaded indicatif v0.12.0
[INFO] [stderr]   Downloaded libc v0.2.62
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38c6bc5dbe297b1c46acd231b2a92dd7e6877b7f5e4bf03b81615dd0b97e136a
[INFO] running `Command { std: "docker" "start" "-a" "38c6bc5dbe297b1c46acd231b2a92dd7e6877b7f5e4bf03b81615dd0b97e136a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38c6bc5dbe297b1c46acd231b2a92dd7e6877b7f5e4bf03b81615dd0b97e136a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c6bc5dbe297b1c46acd231b2a92dd7e6877b7f5e4bf03b81615dd0b97e136a", kill_on_drop: false }`
[INFO] [stdout] 38c6bc5dbe297b1c46acd231b2a92dd7e6877b7f5e4bf03b81615dd0b97e136a
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9baa86c57333f6dfccc36d7732e8d52cd8cf5616687bc22626cfa8dbc3f5d912
[INFO] running `Command { std: "docker" "start" "-a" "9baa86c57333f6dfccc36d7732e8d52cd8cf5616687bc22626cfa8dbc3f5d912", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking console v0.9.0
[INFO] [stderr]     Checking indicatif v0.12.0
[INFO] [stderr]     Checking flaky-finder v0.2.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `exit_status` is never read
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct FlakyFinder {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     exit_status: Option<ExitStatus>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FlakyFinder` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `exit_status` is never read
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct FlakyFinder {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     exit_status: Option<ExitStatus>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FlakyFinder` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "9baa86c57333f6dfccc36d7732e8d52cd8cf5616687bc22626cfa8dbc3f5d912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9baa86c57333f6dfccc36d7732e8d52cd8cf5616687bc22626cfa8dbc3f5d912", kill_on_drop: false }`
[INFO] [stdout] 9baa86c57333f6dfccc36d7732e8d52cd8cf5616687bc22626cfa8dbc3f5d912