[INFO] cloning repository https://github.com/jasonwhite/button-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jasonwhite/button-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasonwhite%2Fbutton-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasonwhite%2Fbutton-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5319e74a95d3e7184af3a322e3447d0c03a4e38
[INFO] testing jasonwhite/button-rs against 1.52.1 for beta-1.52-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasonwhite%2Fbutton-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jasonwhite/button-rs on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jasonwhite/button-rs
[INFO] finished tweaking git repo https://github.com/jasonwhite/button-rs
[INFO] tweaked toml for git repo https://github.com/jasonwhite/button-rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/jasonwhite/button-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "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" "+1.52.1" "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] 17ee9da0c8db5854edc53df1668bf74b70b2351f6c3eef248e07074a1f50055a
[INFO] running `Command { std: "docker" "start" "-a" "17ee9da0c8db5854edc53df1668bf74b70b2351f6c3eef248e07074a1f50055a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17ee9da0c8db5854edc53df1668bf74b70b2351f6c3eef248e07074a1f50055a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17ee9da0c8db5854edc53df1668bf74b70b2351f6c3eef248e07074a1f50055a", kill_on_drop: false }`
[INFO] [stdout] 17ee9da0c8db5854edc53df1668bf74b70b2351f6c3eef248e07074a1f50055a
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d95988b12e2d317bb42f13bbe6b51361c1d086e1d53b7abb99f4f6b7c43797b9
[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" "d95988b12e2d317bb42f13bbe6b51361c1d086e1d53b7abb99f4f6b7c43797b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
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[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling try-lock v0.2.2
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling arc-swap v0.4.5
[INFO] [stderr]    Compiling boxfnonce v0.1.1
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling humantime v2.0.1
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling tower-service v0.2.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling terminal_size v0.1.15
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stderr]    Compiling daemonize v0.4.1
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling crossbeam v0.8.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling cookie v0.12.0
[INFO] [stderr]    Compiling publicsuffix v1.5.4
[INFO] [stderr]    Compiling console v0.14.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling backtrace v0.3.41
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling indicatif v0.15.0
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling structopt v0.3.17
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling holyhashmap v0.1.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling tokio-serde v0.3.0
[INFO] [stderr]    Compiling tokio-serde-bincode v0.2.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling cookie_store v0.7.0
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio-signal v0.2.9
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling reqwest v0.9.24
[INFO] [stderr]    Compiling button v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 17s
[INFO] running `Command { std: "docker" "inspect" "d95988b12e2d317bb42f13bbe6b51361c1d086e1d53b7abb99f4f6b7c43797b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95988b12e2d317bb42f13bbe6b51361c1d086e1d53b7abb99f4f6b7c43797b9", kill_on_drop: false }`
[INFO] [stdout] d95988b12e2d317bb42f13bbe6b51361c1d086e1d53b7abb99f4f6b7c43797b9
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8ecbd5c23e88d8eb4ee11466fd95770d6b23f5c40b76a7ed22cd147f3160011
[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" "c8ecbd5c23e88d8eb4ee11466fd95770d6b23f5c40b76a7ed22cd147f3160011", kill_on_drop: false }`
[INFO] [stderr]    Compiling button v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.33s
[INFO] running `Command { std: "docker" "inspect" "c8ecbd5c23e88d8eb4ee11466fd95770d6b23f5c40b76a7ed22cd147f3160011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8ecbd5c23e88d8eb4ee11466fd95770d6b23f5c40b76a7ed22cd147f3160011", kill_on_drop: false }`
[INFO] [stdout] c8ecbd5c23e88d8eb4ee11466fd95770d6b23f5c40b76a7ed22cd147f3160011
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2e003e10ca4ef5677f9337d966f2e2c7b1fad7eae4ba6e47c2c0c010e2daf9f1
[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" "2e003e10ca4ef5677f9337d966f2e2c7b1fad7eae4ba6e47c2c0c010e2daf9f1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/button-9a075cf2003b7731)
[INFO] [stdout] running 19 tests
[INFO] [stdout] test graph::base::tests::diff ... ok
[INFO] [stdout] test build_graph::tests::test_good_graph ... ok
[INFO] [stdout] test res::file::tests::test_normalized ... ok
[INFO] [stdout] test rules::tests::test_loading ... ok
[INFO] [stdout] test graph::base::tests::test_tarjan ... ok
[INFO] [stdout] test events::test::event_handler ... ok
[INFO] [stdout] test graph::base::tests::test_smoke ... ok
[INFO] [stdout] test task::command::tests::test_command_display ... ok
[INFO] [stdout] test build_graph::tests::test_cycles ... ok
[INFO] [stdout] test build_graph::tests::test_races ... ok
[INFO] [stdout] test util::path::tests::test_norm ... ok
[INFO] [stdout] test util::path::tests::test_relative_from ... ok
[INFO] [stdout] test task::makedir::tests::known_inputs_no_parent ... ok
[INFO] [stdout] test util::make::tests::it_works ... ok
[INFO] [stdout] test task::makedir::tests::known_inputs_parent ... ok
[INFO] [stdout] test util::iter::tests::test_empty_or_any ... ok
[INFO] [stdout] test task::makedir::tests::known_inputs_dot_parent ... ok
[INFO] [stdout] test task::makedir::tests::known_outputs ... ok
[INFO] [stdout] test util::args::tests::test_arg_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/button-02d6ed0da30f0795)
[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 button
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/button/util/retry.rs - util::retry (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e003e10ca4ef5677f9337d966f2e2c7b1fad7eae4ba6e47c2c0c010e2daf9f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e003e10ca4ef5677f9337d966f2e2c7b1fad7eae4ba6e47c2c0c010e2daf9f1", kill_on_drop: false }`
[INFO] [stdout] 2e003e10ca4ef5677f9337d966f2e2c7b1fad7eae4ba6e47c2c0c010e2daf9f1