[INFO] fetching crate knube 0.2.0...
[INFO] testing knube-0.2.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate knube 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate knube 0.2.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate knube 0.2.0
[INFO] finished tweaking crates.io crate knube 0.2.0
[INFO] tweaked toml for crates.io crate knube 0.2.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate knube 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64b75f6974e9c9cfb3ad7ccc61372138d45fc2444775452f22f4a7b2ef392e41
[INFO] running `Command { std: "docker" "start" "-a" "64b75f6974e9c9cfb3ad7ccc61372138d45fc2444775452f22f4a7b2ef392e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64b75f6974e9c9cfb3ad7ccc61372138d45fc2444775452f22f4a7b2ef392e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b75f6974e9c9cfb3ad7ccc61372138d45fc2444775452f22f4a7b2ef392e41", kill_on_drop: false }`
[INFO] [stdout] 64b75f6974e9c9cfb3ad7ccc61372138d45fc2444775452f22f4a7b2ef392e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d85d8baf193f6713915b1429928a5ab86367a6246fc6875663ccb7093d95d6e
[INFO] running `Command { std: "docker" "start" "-a" "0d85d8baf193f6713915b1429928a5ab86367a6246fc6875663ccb7093d95d6e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling knube v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "0d85d8baf193f6713915b1429928a5ab86367a6246fc6875663ccb7093d95d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d85d8baf193f6713915b1429928a5ab86367a6246fc6875663ccb7093d95d6e", kill_on_drop: false }`
[INFO] [stdout] 0d85d8baf193f6713915b1429928a5ab86367a6246fc6875663ccb7093d95d6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b1066bf9576625c4544828da742886d35f349321165fe18c0cac33bb3a1a274
[INFO] running `Command { std: "docker" "start" "-a" "5b1066bf9576625c4544828da742886d35f349321165fe18c0cac33bb3a1a274", kill_on_drop: false }`
[INFO] [stderr]    Compiling knube v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "5b1066bf9576625c4544828da742886d35f349321165fe18c0cac33bb3a1a274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b1066bf9576625c4544828da742886d35f349321165fe18c0cac33bb3a1a274", kill_on_drop: false }`
[INFO] [stdout] 5b1066bf9576625c4544828da742886d35f349321165fe18c0cac33bb3a1a274
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 796cb6b47b50a40d8773ad4f5dd0ccf99efb0b3bab36887461862a60ba07b2dc
[INFO] running `Command { std: "docker" "start" "-a" "796cb6b47b50a40d8773ad4f5dd0ccf99efb0b3bab36887461862a60ba07b2dc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/knube-543d208cba37b7d4)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test exp::tests::exp_size ... ok
[INFO] [stdout] test exp::tests::exp_display_format ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/knube-ece77baa32d0a0c5)
[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] [stderr]    Doc-tests knube
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/exp.rs - exp (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "796cb6b47b50a40d8773ad4f5dd0ccf99efb0b3bab36887461862a60ba07b2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "796cb6b47b50a40d8773ad4f5dd0ccf99efb0b3bab36887461862a60ba07b2dc", kill_on_drop: false }`
[INFO] [stdout] 796cb6b47b50a40d8773ad4f5dd0ccf99efb0b3bab36887461862a60ba07b2dc