[INFO] fetching crate tab-api 0.5.2...
[INFO] checking tab-api-0.5.2 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate tab-api 0.5.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tab-api 0.5.2 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tab-api 0.5.2
[INFO] finished tweaking crates.io crate tab-api 0.5.2
[INFO] tweaked toml for crates.io crate tab-api 0.5.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "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] 81419f681a1633688db8e35982fa661cdfcbe42e38c724df6303a63654d9ef9a
[INFO] running `Command { std: "docker" "start" "-a" "81419f681a1633688db8e35982fa661cdfcbe42e38c724df6303a63654d9ef9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81419f681a1633688db8e35982fa661cdfcbe42e38c724df6303a63654d9ef9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81419f681a1633688db8e35982fa661cdfcbe42e38c724df6303a63654d9ef9a", kill_on_drop: false }`
[INFO] [stdout] 81419f681a1633688db8e35982fa661cdfcbe42e38c724df6303a63654d9ef9a
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--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] 7ce07ac1b904a805fb62be12eee98e59924450bd79aaa1e729a66dcf30410beb
[INFO] running `Command { std: "docker" "start" "-a" "7ce07ac1b904a805fb62be12eee98e59924450bd79aaa1e729a66dcf30410beb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling sysinfo v0.15.3
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking owned-alloc v0.2.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking lockfree v0.5.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking snailquote v0.3.0
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking lifeline v0.4.0
[INFO] [stderr]     Checking serde v1.0.118
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking tab-api v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "7ce07ac1b904a805fb62be12eee98e59924450bd79aaa1e729a66dcf30410beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce07ac1b904a805fb62be12eee98e59924450bd79aaa1e729a66dcf30410beb", kill_on_drop: false }`
[INFO] [stdout] 7ce07ac1b904a805fb62be12eee98e59924450bd79aaa1e729a66dcf30410beb