[INFO] fetching crate semantic-release-rust 1.0.0-alpha.5...
[INFO] checking semantic-release-rust-1.0.0-alpha.5 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate semantic-release-rust 1.0.0-alpha.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate semantic-release-rust 1.0.0-alpha.5 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semantic-release-rust 1.0.0-alpha.5
[INFO] finished tweaking crates.io crate semantic-release-rust 1.0.0-alpha.5
[INFO] tweaked toml for crates.io crate semantic-release-rust 1.0.0-alpha.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate semantic-release-rust 1.0.0-alpha.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5ae145acf4051184f93cc70aa76b8212b3a2a031389adebe0b973565ebd57c3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f5ae145acf4051184f93cc70aa76b8212b3a2a031389adebe0b973565ebd57c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5ae145acf4051184f93cc70aa76b8212b3a2a031389adebe0b973565ebd57c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5ae145acf4051184f93cc70aa76b8212b3a2a031389adebe0b973565ebd57c3", kill_on_drop: false }`
[INFO] [stdout] f5ae145acf4051184f93cc70aa76b8212b3a2a031389adebe0b973565ebd57c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29268433d3e3d144d0a88031a4fae5d7967d02d5e94a6259f2325749c85525c1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "29268433d3e3d144d0a88031a4fae5d7967d02d5e94a6259f2325749c85525c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling target-spec v0.4.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking nested v0.1.1
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]     Checking fs_extra v1.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]     Checking cfg-expr v0.4.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking loggerv v0.7.2
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking toml_edit v0.2.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking human-panic v1.0.3
[INFO] [stderr]     Checking cargo_metadata v0.10.0
[INFO] [stderr]     Checking guppy v0.5.0
[INFO] [stderr]     Checking semantic-release-rust v1.0.0-alpha.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "29268433d3e3d144d0a88031a4fae5d7967d02d5e94a6259f2325749c85525c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29268433d3e3d144d0a88031a4fae5d7967d02d5e94a6259f2325749c85525c1", kill_on_drop: false }`
[INFO] [stdout] 29268433d3e3d144d0a88031a4fae5d7967d02d5e94a6259f2325749c85525c1