[INFO] fetching crate contractions 0.5.4...
[INFO] checking contractions-0.5.4 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate contractions 0.5.4 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate contractions 0.5.4 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate contractions 0.5.4
[INFO] finished tweaking crates.io crate contractions 0.5.4
[INFO] tweaked toml for crates.io crate contractions 0.5.4 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] crate crates.io crate contractions 0.5.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0bacb71e27cbc7c054b222604dbb9bd853b22aa6e6803de83fa1124e64fb28a
[INFO] running `Command { std: "docker" "start" "-a" "f0bacb71e27cbc7c054b222604dbb9bd853b22aa6e6803de83fa1124e64fb28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0bacb71e27cbc7c054b222604dbb9bd853b22aa6e6803de83fa1124e64fb28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0bacb71e27cbc7c054b222604dbb9bd853b22aa6e6803de83fa1124e64fb28a", kill_on_drop: false }`
[INFO] [stdout] f0bacb71e27cbc7c054b222604dbb9bd853b22aa6e6803de83fa1124e64fb28a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b74c2fa7008790fa59d15dfdb9690b00134e2ae409fcce503285281aa28d3a6
[INFO] running `Command { std: "docker" "start" "-a" "8b74c2fa7008790fa59d15dfdb9690b00134e2ae409fcce503285281aa28d3a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking serde_test v1.0.126
[INFO] [stderr]     Checking serde_regex v1.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking contractions v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.81s
[INFO] running `Command { std: "docker" "inspect" "8b74c2fa7008790fa59d15dfdb9690b00134e2ae409fcce503285281aa28d3a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b74c2fa7008790fa59d15dfdb9690b00134e2ae409fcce503285281aa28d3a6", kill_on_drop: false }`
[INFO] [stdout] 8b74c2fa7008790fa59d15dfdb9690b00134e2ae409fcce503285281aa28d3a6