[INFO] fetching crate mercust-utils 0.0.1...
[INFO] checking mercust-utils-0.0.1 against master#90384941aae4ea38de00e4702b50757e9b882a19 for pr-138340
[INFO] extracting crate mercust-utils 0.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate mercust-utils 0.0.1 on toolchain 90384941aae4ea38de00e4702b50757e9b882a19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+90384941aae4ea38de00e4702b50757e9b882a19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mercust-utils 0.0.1
[INFO] finished tweaking crates.io crate mercust-utils 0.0.1
[INFO] tweaked toml for crates.io crate mercust-utils 0.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+90384941aae4ea38de00e4702b50757e9b882a19" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding mercust v0.0.0 (available: v0.0.1)
[INFO] [stderr]       Adding mercust-spec-reader v0.0.0 (available: v0.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+90384941aae4ea38de00e4702b50757e9b882a19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mercust v0.0.0
[INFO] [stderr]   Downloaded mercust-spec-reader v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+90384941aae4ea38de00e4702b50757e9b882a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b42dcc2ae84850ff2a59a3418d90abd637675d1a01cb0dd3cc50ac2814662cae
[INFO] running `Command { std: "docker" "start" "-a" "b42dcc2ae84850ff2a59a3418d90abd637675d1a01cb0dd3cc50ac2814662cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b42dcc2ae84850ff2a59a3418d90abd637675d1a01cb0dd3cc50ac2814662cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b42dcc2ae84850ff2a59a3418d90abd637675d1a01cb0dd3cc50ac2814662cae", kill_on_drop: false }`
[INFO] [stdout] b42dcc2ae84850ff2a59a3418d90abd637675d1a01cb0dd3cc50ac2814662cae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+90384941aae4ea38de00e4702b50757e9b882a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1ddf86b543e98fc2294abb7d25546318323bc53748c309d74388e1243dbd1bf
[INFO] running `Command { std: "docker" "start" "-a" "f1ddf86b543e98fc2294abb7d25546318323bc53748c309d74388e1243dbd1bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking xmlparser v0.13.6
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]     Checking roxmltree v0.18.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling phf_macros v0.11.3
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]     Checking mercust v0.0.0
[INFO] [stderr]     Checking mercust-spec-reader v0.0.0
[INFO] [stderr]     Checking mercust-utils v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.96s
[INFO] running `Command { std: "docker" "inspect" "f1ddf86b543e98fc2294abb7d25546318323bc53748c309d74388e1243dbd1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1ddf86b543e98fc2294abb7d25546318323bc53748c309d74388e1243dbd1bf", kill_on_drop: false }`
[INFO] [stdout] f1ddf86b543e98fc2294abb7d25546318323bc53748c309d74388e1243dbd1bf