[INFO] fetching crate iowrap 0.2.0...
[INFO] checking iowrap-0.2.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate iowrap 0.2.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate iowrap 0.2.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iowrap 0.2.0
[INFO] finished tweaking crates.io crate iowrap 0.2.0
[INFO] tweaked toml for crates.io crate iowrap 0.2.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81d8e355bc0e7540b01a1a61cc2a68dc804a950f91593c71e923372bceacbc95
[INFO] running `Command { std: "docker" "start" "-a" "81d8e355bc0e7540b01a1a61cc2a68dc804a950f91593c71e923372bceacbc95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81d8e355bc0e7540b01a1a61cc2a68dc804a950f91593c71e923372bceacbc95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d8e355bc0e7540b01a1a61cc2a68dc804a950f91593c71e923372bceacbc95", kill_on_drop: false }`
[INFO] [stdout] 81d8e355bc0e7540b01a1a61cc2a68dc804a950f91593c71e923372bceacbc95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bc250d2e1d646e10208f562056e5dd07e4ffd82b3d26940c7e7874d71ed4cd2
[INFO] running `Command { std: "docker" "start" "-a" "0bc250d2e1d646e10208f562056e5dd07e4ffd82b3d26940c7e7874d71ed4cd2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking iowrap v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "0bc250d2e1d646e10208f562056e5dd07e4ffd82b3d26940c7e7874d71ed4cd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc250d2e1d646e10208f562056e5dd07e4ffd82b3d26940c7e7874d71ed4cd2", kill_on_drop: false }`
[INFO] [stdout] 0bc250d2e1d646e10208f562056e5dd07e4ffd82b3d26940c7e7874d71ed4cd2