[INFO] fetching crate ringtail 0.3.0...
[INFO] testing ringtail-0.3.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate ringtail 0.3.0 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate ringtail 0.3.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ringtail 0.3.0
[INFO] finished tweaking crates.io crate ringtail 0.3.0
[INFO] tweaked toml for crates.io crate ringtail 0.3.0 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbd993608a44cc817e70ff638576406e3678649783fb38fd525a9ea86ae09b0f
[INFO] running `Command { std: "docker" "start" "-a" "fbd993608a44cc817e70ff638576406e3678649783fb38fd525a9ea86ae09b0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbd993608a44cc817e70ff638576406e3678649783fb38fd525a9ea86ae09b0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd993608a44cc817e70ff638576406e3678649783fb38fd525a9ea86ae09b0f", kill_on_drop: false }`
[INFO] [stdout] fbd993608a44cc817e70ff638576406e3678649783fb38fd525a9ea86ae09b0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87a4597137d5cfaae02783e047c177a5ed13b53ccda1af9ff49767d0841c3076
[INFO] running `Command { std: "docker" "start" "-a" "87a4597137d5cfaae02783e047c177a5ed13b53ccda1af9ff49767d0841c3076", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ringtail v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "87a4597137d5cfaae02783e047c177a5ed13b53ccda1af9ff49767d0841c3076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87a4597137d5cfaae02783e047c177a5ed13b53ccda1af9ff49767d0841c3076", kill_on_drop: false }`
[INFO] [stdout] 87a4597137d5cfaae02783e047c177a5ed13b53ccda1af9ff49767d0841c3076
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18015eddff4a191efc0afabeb57e350d56ab8a9b9d79499e68118c98c9ca0646
[INFO] running `Command { std: "docker" "start" "-a" "18015eddff4a191efc0afabeb57e350d56ab8a9b9d79499e68118c98c9ca0646", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling ringtail v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.17s
[INFO] running `Command { std: "docker" "inspect" "18015eddff4a191efc0afabeb57e350d56ab8a9b9d79499e68118c98c9ca0646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18015eddff4a191efc0afabeb57e350d56ab8a9b9d79499e68118c98c9ca0646", kill_on_drop: false }`
[INFO] [stdout] 18015eddff4a191efc0afabeb57e350d56ab8a9b9d79499e68118c98c9ca0646
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=warn" "-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" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 210b1f6960a5422a962e1a2e152507814b8e21ed75a89049801e51b73f9f3f4f
[INFO] running `Command { std: "docker" "start" "-a" "210b1f6960a5422a962e1a2e152507814b8e21ed75a89049801e51b73f9f3f4f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ringtail-24d4e0edeee648be)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test buffers::atomic::tests::test_capacity ... ok
[INFO] [stdout] test buffers::atomic::tests::test_pull_less_than_buffer ... ok
[INFO] [stdout] test buffers::atomic::tests::test_push ... ok
[INFO] [stdout] test buffers::atomic::tests::test_pull_more_than_buffer ... ok
[INFO] [stdout] test buffers::atomic::tests::test_push_and_consume ... ok
[INFO] [stdout] test buffers::atomic::tests::test_push_more_than_buffer ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_capacity ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_force_resize ... ok
[INFO] [stdout] test buffers::atomic::tests::test_push_capacity ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_push ... ok
[INFO] [stdout] test io::tests::read_nonblocking ... ok
[INFO] [stdout] test io::tests::read_from_closed_pipe_returns_zero ... ok
[INFO] [stdout] test internal::arrays::tests::copy_to_seq_with_less_elements ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_pull_less_than_buffer ... ok
[INFO] [stdout] test internal::arrays::tests::copy_to_seq_with_more_elements ... ok
[INFO] [stdout] test internal::arrays::tests::copy_from_seq_with_more_elements ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_pull_more_than_buffer ... ok
[INFO] [stdout] test io::tests::read_write ... ok
[INFO] [stdout] test io::tests::write_to_closed_pipe_returns_broken_pipe ... ok
[INFO] [stdout] test io::tests::write_nonblocking ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_push_a_lot ... ok
[INFO] [stdout] test internal::arrays::tests::copy_from_seq_with_less_elements ... ok
[INFO] [stdout] test buffers::unbounded::tests::test_push_and_consume ... ok
[INFO] [stderr]    Doc-tests ringtail
[INFO] [stdout] test io::tests::read_empty_blocking ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[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" "210b1f6960a5422a962e1a2e152507814b8e21ed75a89049801e51b73f9f3f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210b1f6960a5422a962e1a2e152507814b8e21ed75a89049801e51b73f9f3f4f", kill_on_drop: false }`
[INFO] [stdout] 210b1f6960a5422a962e1a2e152507814b8e21ed75a89049801e51b73f9f3f4f
