[INFO] fetching crate flaky-finder 0.2.22...
[INFO] building flaky-finder-0.2.22 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate flaky-finder 0.2.22 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate flaky-finder 0.2.22 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-3-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console v0.9.0
[INFO] [stderr]   Downloaded indicatif v0.12.0
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4abe874053f5a5d5d090e065efe40da56a3b6062ecee7ff85168dc3f1563fa20
[INFO] running `Command { std: "docker" "start" "-a" "4abe874053f5a5d5d090e065efe40da56a3b6062ecee7ff85168dc3f1563fa20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4abe874053f5a5d5d090e065efe40da56a3b6062ecee7ff85168dc3f1563fa20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4abe874053f5a5d5d090e065efe40da56a3b6062ecee7ff85168dc3f1563fa20", kill_on_drop: false }`
[INFO] [stdout] 4abe874053f5a5d5d090e065efe40da56a3b6062ecee7ff85168dc3f1563fa20
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20dce667ee40789a57c4345aa24e93fd29b8eff8c8c5b769b13c6b2a107a89e2
[INFO] running `Command { std: "docker" "start" "-a" "20dce667ee40789a57c4345aa24e93fd29b8eff8c8c5b769b13c6b2a107a89e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling clicolors-control v1.0.1
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling console v0.9.0
[INFO] [stderr]    Compiling indicatif v0.12.0
[INFO] [stderr]    Compiling 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "20dce667ee40789a57c4345aa24e93fd29b8eff8c8c5b769b13c6b2a107a89e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20dce667ee40789a57c4345aa24e93fd29b8eff8c8c5b769b13c6b2a107a89e2", kill_on_drop: false }`
[INFO] [stdout] 20dce667ee40789a57c4345aa24e93fd29b8eff8c8c5b769b13c6b2a107a89e2
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8332955015ddb001a580b5e30ca20e4d11c4deaf094b8740cac32ceec758eca0
[INFO] running `Command { std: "docker" "start" "-a" "8332955015ddb001a580b5e30ca20e4d11c4deaf094b8740cac32ceec758eca0", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "8332955015ddb001a580b5e30ca20e4d11c4deaf094b8740cac32ceec758eca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8332955015ddb001a580b5e30ca20e4d11c4deaf094b8740cac32ceec758eca0", kill_on_drop: false }`
[INFO] [stdout] 8332955015ddb001a580b5e30ca20e4d11c4deaf094b8740cac32ceec758eca0