[INFO] fetching crate vmcircbuffer 0.0.10...
[INFO] checking vmcircbuffer-0.0.10 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate vmcircbuffer 0.0.10 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate vmcircbuffer 0.0.10 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vmcircbuffer 0.0.10
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate vmcircbuffer 0.0.10
[INFO] tweaked toml for crates.io crate vmcircbuffer 0.0.10 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate vmcircbuffer 0.0.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-process v1.4.0
[INFO] [stderr]   Downloaded async-net v1.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 478fbca5c1459a4dc5ef184ec89c541330bde5a161fd2d0aeaf792859e997dc4
[INFO] running `Command { std: "docker" "start" "-a" "478fbca5c1459a4dc5ef184ec89c541330bde5a161fd2d0aeaf792859e997dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "478fbca5c1459a4dc5ef184ec89c541330bde5a161fd2d0aeaf792859e997dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "478fbca5c1459a4dc5ef184ec89c541330bde5a161fd2d0aeaf792859e997dc4", kill_on_drop: false }`
[INFO] [stdout] 478fbca5c1459a4dc5ef184ec89c541330bde5a161fd2d0aeaf792859e997dc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2ef61bfbc26f5a76cee4dfdb17ff12d8744ef71416bbd45a3039f8b294d8e7f
[INFO] running `Command { std: "docker" "start" "-a" "d2ef61bfbc26f5a76cee4dfdb17ff12d8744ef71416bbd45a3039f8b294d8e7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking async-task v4.2.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking blocking v1.2.0
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking async-io v1.7.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-net v1.6.1
[INFO] [stderr]     Checking async-process v1.4.0
[INFO] [stderr]     Checking smol v1.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking vmcircbuffer v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.23s
[INFO] running `Command { std: "docker" "inspect" "d2ef61bfbc26f5a76cee4dfdb17ff12d8744ef71416bbd45a3039f8b294d8e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2ef61bfbc26f5a76cee4dfdb17ff12d8744ef71416bbd45a3039f8b294d8e7f", kill_on_drop: false }`
[INFO] [stdout] d2ef61bfbc26f5a76cee4dfdb17ff12d8744ef71416bbd45a3039f8b294d8e7f