[INFO] fetching crate topfew 0.2.2...
[INFO] testing topfew-0.2.2 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate topfew 0.2.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate topfew 0.2.2 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate topfew 0.2.2
[INFO] finished tweaking crates.io crate topfew 0.2.2
[INFO] tweaked toml for crates.io crate topfew 0.2.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate topfew 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f063c50d2fcf48b011f4b705dff7c3bc43504f286174c24110882e78c7a08b1
[INFO] running `Command { std: "docker" "start" "-a" "2f063c50d2fcf48b011f4b705dff7c3bc43504f286174c24110882e78c7a08b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f063c50d2fcf48b011f4b705dff7c3bc43504f286174c24110882e78c7a08b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f063c50d2fcf48b011f4b705dff7c3bc43504f286174c24110882e78c7a08b1", kill_on_drop: false }`
[INFO] [stdout] 2f063c50d2fcf48b011f4b705dff7c3bc43504f286174c24110882e78c7a08b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cb78c942232a5debae395f875b71c67c8dbcca168d0eec2db35772e49eb4397
[INFO] running `Command { std: "docker" "start" "-a" "4cb78c942232a5debae395f875b71c67c8dbcca168d0eec2db35772e49eb4397", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ahash v0.7.0
[INFO] [stderr]    Compiling smartstring v0.2.6
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling topfew v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.60s
[INFO] running `Command { std: "docker" "inspect" "4cb78c942232a5debae395f875b71c67c8dbcca168d0eec2db35772e49eb4397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb78c942232a5debae395f875b71c67c8dbcca168d0eec2db35772e49eb4397", kill_on_drop: false }`
[INFO] [stdout] 4cb78c942232a5debae395f875b71c67c8dbcca168d0eec2db35772e49eb4397
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efd4d364805cec0cccd397cf23e2b3c01c8c24338c668bea2579fe2213e50be2
[INFO] running `Command { std: "docker" "start" "-a" "efd4d364805cec0cccd397cf23e2b3c01c8c24338c668bea2579fe2213e50be2", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling quickcheck v1.0.3
[INFO] [stderr]    Compiling topfew v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `Command { std: "docker" "inspect" "efd4d364805cec0cccd397cf23e2b3c01c8c24338c668bea2579fe2213e50be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd4d364805cec0cccd397cf23e2b3c01c8c24338c668bea2579fe2213e50be2", kill_on_drop: false }`
[INFO] [stdout] efd4d364805cec0cccd397cf23e2b3c01c8c24338c668bea2579fe2213e50be2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e041a5e0f34bba72de4f5fad56718dea6943d04272b91a4bd3b85d1c1f6a3b5b
[INFO] running `Command { std: "docker" "start" "-a" "e041a5e0f34bba72de4f5fad56718dea6943d04272b91a4bd3b85d1c1f6a3b5b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/topfew-4970b9f001a0c3b1)
[INFO] [stdout] test chunks::tests::test_chunks ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tf-c2d6c272b492b07a)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests topfew
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.18s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e041a5e0f34bba72de4f5fad56718dea6943d04272b91a4bd3b85d1c1f6a3b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e041a5e0f34bba72de4f5fad56718dea6943d04272b91a4bd3b85d1c1f6a3b5b", kill_on_drop: false }`
[INFO] [stdout] e041a5e0f34bba72de4f5fad56718dea6943d04272b91a4bd3b85d1c1f6a3b5b