[INFO] cloning repository https://github.com/mattlknight/threading-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattlknight/threading-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattlknight%2Fthreading-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattlknight%2Fthreading-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50a9af5b07d5c8f30136e3a3486a8e3f8a1800f5
[INFO] testing mattlknight/threading-test against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattlknight%2Fthreading-test" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattlknight/threading-test on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattlknight/threading-test
[INFO] finished tweaking git repo https://github.com/mattlknight/threading-test
[INFO] tweaked toml for git repo https://github.com/mattlknight/threading-test written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mattlknight/threading-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-cpupool v0.1.8
[INFO] [stderr]   Downloaded phf_generator v0.7.24
[INFO] [stderr]   Downloaded phf_shared v0.7.24
[INFO] [stderr]   Downloaded unicase v1.4.2
[INFO] [stderr]   Downloaded actix-net v0.2.6
[INFO] [stderr]   Downloaded http v0.1.16
[INFO] [stderr]   Downloaded trust-dns-resolver v0.10.3
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded phf_codegen v0.7.24
[INFO] [stderr]   Downloaded serde_urlencoded v0.5.4
[INFO] [stderr]   Downloaded mime_guess v2.0.0-alpha.6
[INFO] [stderr]   Downloaded tokio-fs v0.1.6
[INFO] [stderr]   Downloaded crossbeam-queue v0.1.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.1
[INFO] [stderr]   Downloaded tokio-uds v0.2.5
[INFO] [stderr]   Downloaded cookie v0.11.0
[INFO] [stderr]   Downloaded tower-service v0.1.0
[INFO] [stderr]   Downloaded trust-dns-proto v0.6.3
[INFO] [stderr]   Downloaded trust-dns-proto v0.5.0
[INFO] [stderr]   Downloaded uuid v0.7.3
[INFO] [stderr]   Downloaded regex v1.1.2
[INFO] [stderr]   Downloaded arc-swap v0.3.8
[INFO] [stderr]   Downloaded v_htmlescape v0.3.2
[INFO] [stderr]   Downloaded v_escape_derive v0.2.1
[INFO] [stderr]   Downloaded safemem v0.3.0
[INFO] [stderr]   Downloaded v_escape v0.3.2
[INFO] [stderr]   Downloaded crossbeam-channel v0.3.8
[INFO] [stderr]   Downloaded cc v1.0.32
[INFO] [stderr]   Downloaded actix-web v0.7.18
[INFO] [stderr]   Downloaded actix v0.7.9
[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] [stderr]   Downloaded regex-syntax v0.6.5
[INFO] [stderr]   Downloaded h2 v0.1.17
[INFO] [stderr]   Downloaded tokio-trace-core v0.1.0
[INFO] [stderr]   Downloaded futures v0.1.25
[INFO] [stderr]   Downloaded ring v0.13.5
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.1
[INFO] [stderr]   Downloaded actix_derive v0.3.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.51
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.13
[INFO] [stderr]   Downloaded tokio v0.1.18
[INFO] [stderr]   Downloaded phf v0.7.24
[INFO] [stderr]   Downloaded base64 v0.9.3
[INFO] [stderr]   Downloaded siphasher v0.2.3
[INFO] [stderr]   Downloaded nom v4.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cea86b5185c4983c749810ba39ceb19dabc093bd8b665dbeee85cba35b2419ac
[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" "cea86b5185c4983c749810ba39ceb19dabc093bd8b665dbeee85cba35b2419ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cea86b5185c4983c749810ba39ceb19dabc093bd8b665dbeee85cba35b2419ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cea86b5185c4983c749810ba39ceb19dabc093bd8b665dbeee85cba35b2419ac", kill_on_drop: false }`
[INFO] [stdout] cea86b5185c4983c749810ba39ceb19dabc093bd8b665dbeee85cba35b2419ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f421c3a2aa65949ffc10f99aa7a40474b55743ea79044e2640241b0fbb4a88f
[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" "9f421c3a2aa65949ffc10f99aa7a40474b55743ea79044e2640241b0fbb4a88f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling arc-swap v0.3.8
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling tokio-sync v0.1.4
[INFO] [stderr]    Compiling v_escape v0.3.2
[INFO] [stderr]    Compiling v_htmlescape v0.3.2
[INFO] [stderr]    Compiling actix-web v0.7.18
[INFO] [stderr]    Compiling tower-service v0.1.0
[INFO] [stderr]    Compiling tokio-executor v0.1.7
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling socket2 v0.3.8
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling resolv-conf v0.6.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling signal-hook v0.1.8
[INFO] [stderr]    Compiling tokio-timer v0.2.10
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.17
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling uuid v0.7.3
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-signal v0.2.7
[INFO] [stderr]    Compiling tokio v0.1.18
[INFO] [stderr]    Compiling cookie v0.11.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling v_escape_derive v0.2.1
[INFO] [stderr]    Compiling actix_derive v0.3.2
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling trust-dns-proto v0.6.3
[INFO] [stderr]    Compiling trust-dns-proto v0.5.0
[INFO] [stderr]    Compiling trust-dns-resolver v0.10.3
[INFO] [stderr]    Compiling actix v0.7.9
[INFO] [stderr]    Compiling actix-net v0.2.6
[INFO] [stderr]    Compiling threading-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:140:28
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn main() -> Result<(),Box<Error>> {
[INFO] [stdout]     |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 19s
[INFO] running `Command { std: "docker" "inspect" "9f421c3a2aa65949ffc10f99aa7a40474b55743ea79044e2640241b0fbb4a88f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f421c3a2aa65949ffc10f99aa7a40474b55743ea79044e2640241b0fbb4a88f", kill_on_drop: false }`
[INFO] [stdout] 9f421c3a2aa65949ffc10f99aa7a40474b55743ea79044e2640241b0fbb4a88f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bd4c491dc5ca727682eaaffaebd05dab05bbd9e4de0d702842e2ab32f45ade4
[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" "8bd4c491dc5ca727682eaaffaebd05dab05bbd9e4de0d702842e2ab32f45ade4", kill_on_drop: false }`
[INFO] [stderr]    Compiling threading-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:140:28
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn main() -> Result<(),Box<Error>> {
[INFO] [stdout]     |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.45s
[INFO] running `Command { std: "docker" "inspect" "8bd4c491dc5ca727682eaaffaebd05dab05bbd9e4de0d702842e2ab32f45ade4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bd4c491dc5ca727682eaaffaebd05dab05bbd9e4de0d702842e2ab32f45ade4", kill_on_drop: false }`
[INFO] [stdout] 8bd4c491dc5ca727682eaaffaebd05dab05bbd9e4de0d702842e2ab32f45ade4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6ccfe5b0a5b0bcb13574563a729dbfc379ff94ff80b88abd9f68658b6136eae5
[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" "6ccfe5b0a5b0bcb13574563a729dbfc379ff94ff80b88abd9f68658b6136eae5", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:140:28
[INFO] [stderr]     |
[INFO] [stderr] 140 | fn main() -> Result<(),Box<Error>> {
[INFO] [stderr]     |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/threading_test-1bc9be9e0ec72cbc
[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" "6ccfe5b0a5b0bcb13574563a729dbfc379ff94ff80b88abd9f68658b6136eae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ccfe5b0a5b0bcb13574563a729dbfc379ff94ff80b88abd9f68658b6136eae5", kill_on_drop: false }`
[INFO] [stdout] 6ccfe5b0a5b0bcb13574563a729dbfc379ff94ff80b88abd9f68658b6136eae5