[INFO] fetching crate ipc-communication 0.6.0...
[INFO] testing ipc-communication-0.6.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate ipc-communication 0.6.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ipc-communication 0.6.0 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 ipc-communication 0.6.0
[INFO] finished tweaking crates.io crate ipc-communication 0.6.0
[INFO] tweaked toml for crates.io crate ipc-communication 0.6.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate ipc-communication 0.6.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.59
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.59
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.59
[INFO] [stderr]   Downloaded tinytemplate v1.0.3
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.59
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.11
[INFO] [stderr]   Downloaded js-sys v0.3.36
[INFO] [stderr]   Downloaded criterion-plot v0.4.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.16
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] [stderr]   Downloaded bumpalo v3.2.0
[INFO] [stderr]   Downloaded bstr v0.2.11
[INFO] [stderr]   Downloaded web-sys v0.3.36
[INFO] [stderr]   Downloaded oorandom v11.1.0
[INFO] [stderr]   Downloaded proc-macro-error v0.4.11
[INFO] [stderr]   Downloaded ipc-channel v0.14.0
[INFO] [stderr]   Downloaded rand_xoshiro v0.4.0
[INFO] [stderr]   Downloaded structopt v0.3.11
[INFO] [stderr]   Downloaded snafu-derive v0.6.2
[INFO] [stderr]   Downloaded regex v1.3.4
[INFO] [stderr]   Downloaded snafu v0.6.2
[INFO] [stderr]   Downloaded doc-comment v0.3.2
[INFO] [stderr]   Downloaded plotters v0.2.12
[INFO] [stderr]   Downloaded structopt-derive v0.4.4
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.59
[INFO] [stderr]   Downloaded humantime v2.0.0
[INFO] [stderr]   Downloaded criterion v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 039d2a2d14bca43a7351dfd0ad09af205383d5bc2ec18994b4b018bc998b0bce
[INFO] running `Command { std: "docker" "start" "-a" "039d2a2d14bca43a7351dfd0ad09af205383d5bc2ec18994b4b018bc998b0bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "039d2a2d14bca43a7351dfd0ad09af205383d5bc2ec18994b4b018bc998b0bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "039d2a2d14bca43a7351dfd0ad09af205383d5bc2ec18994b4b018bc998b0bce", kill_on_drop: false }`
[INFO] [stdout] 039d2a2d14bca43a7351dfd0ad09af205383d5bc2ec18994b4b018bc998b0bce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f812eb0c4c1187ef0ac6973696d3746558e854fd20f3269762809c31164eebbd
[INFO] running `Command { std: "docker" "start" "-a" "f812eb0c4c1187ef0ac6973696d3746558e854fd20f3269762809c31164eebbd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling doc-comment v0.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling snafu-derive v0.6.2
[INFO] [stderr]    Compiling snafu v0.6.2
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling ipc-channel v0.14.0
[INFO] [stderr]    Compiling ipc-communication v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.05s
[INFO] running `Command { std: "docker" "inspect" "f812eb0c4c1187ef0ac6973696d3746558e854fd20f3269762809c31164eebbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f812eb0c4c1187ef0ac6973696d3746558e854fd20f3269762809c31164eebbd", kill_on_drop: false }`
[INFO] [stdout] f812eb0c4c1187ef0ac6973696d3746558e854fd20f3269762809c31164eebbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 0acdfe863b92c128775ed2531cd8434ae8f1335ffd7e0bcde2f5449d3b110f94
[INFO] running `Command { std: "docker" "start" "-a" "0acdfe863b92c128775ed2531cd8434ae8f1335ffd7e0bcde2f5449d3b110f94", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling oorandom v11.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling humantime v2.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling bstr v0.2.11
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling criterion-plot v0.4.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling plotters v0.2.12
[INFO] [stderr]    Compiling tinytemplate v1.0.3
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling criterion v0.3.1
[INFO] [stderr]    Compiling structopt v0.3.11
[INFO] [stderr]    Compiling ipc-communication v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.38s
[INFO] running `Command { std: "docker" "inspect" "0acdfe863b92c128775ed2531cd8434ae8f1335ffd7e0bcde2f5449d3b110f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0acdfe863b92c128775ed2531cd8434ae8f1335ffd7e0bcde2f5449d3b110f94", kill_on_drop: false }`
[INFO] [stdout] 0acdfe863b92c128775ed2531cd8434ae8f1335ffd7e0bcde2f5449d3b110f94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 745557e33666834976587b4776fb31af95b10d71df27c55075d279945bbf48ce
[INFO] running `Command { std: "docker" "start" "-a" "745557e33666834976587b4776fb31af95b10d71df27c55075d279945bbf48ce", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ipc_communication-2f01a46d6d645756)
[INFO] [stdout] test test::check ... ok
[INFO] [stderr]    Doc-tests ipc-communication
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 8.71s
[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" "745557e33666834976587b4776fb31af95b10d71df27c55075d279945bbf48ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "745557e33666834976587b4776fb31af95b10d71df27c55075d279945bbf48ce", kill_on_drop: false }`
[INFO] [stdout] 745557e33666834976587b4776fb31af95b10d71df27c55075d279945bbf48ce