[INFO] fetching crate char-device 0.4.0...
[INFO] testing char-device-0.4.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate char-device 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate char-device 0.4.0 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 char-device 0.4.0
[INFO] finished tweaking crates.io crate char-device 0.4.0
[INFO] tweaked toml for crates.io crate char-device 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded posish v0.6.3
[INFO] [stderr]   Downloaded unsafe-io v0.6.12
[INFO] [stderr]   Downloaded io-lifetimes v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 662c10d2b2f003d8c3441fc47ac9ba51f9c9c18d23af5b546cea25634498d4bc
[INFO] running `Command { std: "docker" "start" "-a" "662c10d2b2f003d8c3441fc47ac9ba51f9c9c18d23af5b546cea25634498d4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "662c10d2b2f003d8c3441fc47ac9ba51f9c9c18d23af5b546cea25634498d4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "662c10d2b2f003d8c3441fc47ac9ba51f9c9c18d23af5b546cea25634498d4bc", kill_on_drop: false }`
[INFO] [stdout] 662c10d2b2f003d8c3441fc47ac9ba51f9c9c18d23af5b546cea25634498d4bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1957ade7cd90b0e4eb18c1e43421db2612c585a9cebc7e74a0a62b225980f08a
[INFO] running `Command { std: "docker" "start" "-a" "1957ade7cd90b0e4eb18c1e43421db2612c585a9cebc7e74a0a62b225980f08a", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling unsafe-io v0.6.12
[INFO] [stderr]    Compiling char-device v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling io-lifetimes v0.1.1
[INFO] [stderr]    Compiling posish v0.6.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.53s
[INFO] running `Command { std: "docker" "inspect" "1957ade7cd90b0e4eb18c1e43421db2612c585a9cebc7e74a0a62b225980f08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1957ade7cd90b0e4eb18c1e43421db2612c585a9cebc7e74a0a62b225980f08a", kill_on_drop: false }`
[INFO] [stdout] 1957ade7cd90b0e4eb18c1e43421db2612c585a9cebc7e74a0a62b225980f08a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cc62d35c5502b719ba1d6a7aea9b4a33eaeb43173581ccaadb4bdfbdc296f90a
[INFO] running `Command { std: "docker" "start" "-a" "cc62d35c5502b719ba1d6a7aea9b4a33eaeb43173581ccaadb4bdfbdc296f90a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling fastrand v1.4.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-std v1.9.0
[INFO] [stderr]    Compiling char-device v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.28s
[INFO] running `Command { std: "docker" "inspect" "cc62d35c5502b719ba1d6a7aea9b4a33eaeb43173581ccaadb4bdfbdc296f90a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc62d35c5502b719ba1d6a7aea9b4a33eaeb43173581ccaadb4bdfbdc296f90a", kill_on_drop: false }`
[INFO] [stdout] cc62d35c5502b719ba1d6a7aea9b4a33eaeb43173581ccaadb4bdfbdc296f90a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7da96d780a270963879405a0176c91c9b846bb87add069097c5e7696e450759
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f7da96d780a270963879405a0176c91c9b846bb87add069097c5e7696e450759", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/char_device-475e482b8c71c5b6)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/null.rs (/opt/rustwide/target/debug/deps/null-3b7a5a9051b0375d)
[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 1 test
[INFO] [stderr]      Running tests/tty.rs (/opt/rustwide/target/debug/deps/tty-6a4fb4c8de8a82ca)
[INFO] [stdout] test null ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests char-device
[INFO] [stdout] test tty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "f7da96d780a270963879405a0176c91c9b846bb87add069097c5e7696e450759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7da96d780a270963879405a0176c91c9b846bb87add069097c5e7696e450759", kill_on_drop: false }`
[INFO] [stdout] f7da96d780a270963879405a0176c91c9b846bb87add069097c5e7696e450759