[INFO] fetching crate semantic-release-rust 1.0.0-alpha.7...
[INFO] checking semantic-release-rust-1.0.0-alpha.7 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate semantic-release-rust 1.0.0-alpha.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate semantic-release-rust 1.0.0-alpha.7 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semantic-release-rust 1.0.0-alpha.7
[INFO] finished tweaking crates.io crate semantic-release-rust 1.0.0-alpha.7
[INFO] tweaked toml for crates.io crate semantic-release-rust 1.0.0-alpha.7 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate semantic-release-rust 1.0.0-alpha.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded supercow v0.1.0
[INFO] [stderr]   Downloaded fs_extra v1.1.0
[INFO] [stderr]   Downloaded cargo_metadata v0.10.0
[INFO] [stderr]   Downloaded nested v0.1.1
[INFO] [stderr]   Downloaded pathdiff v0.2.0
[INFO] [stderr]   Downloaded target-spec v0.4.0
[INFO] [stderr]   Downloaded cfg-expr v0.4.1
[INFO] [stderr]   Downloaded guppy v0.5.0
[INFO] [stderr]   Downloaded os_type v2.2.0
[INFO] [stderr]   Downloaded human-panic v1.0.3
[INFO] [stderr]   Downloaded assert_matches v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 63b60534965fa1352f34c5fdc78761e66846e8f1437da272107dd57714f64119
[INFO] running `Command { std: "docker" "start" "-a" "63b60534965fa1352f34c5fdc78761e66846e8f1437da272107dd57714f64119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63b60534965fa1352f34c5fdc78761e66846e8f1437da272107dd57714f64119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63b60534965fa1352f34c5fdc78761e66846e8f1437da272107dd57714f64119", kill_on_drop: false }`
[INFO] [stdout] 63b60534965fa1352f34c5fdc78761e66846e8f1437da272107dd57714f64119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 626967d030038aa7a2c15023400954c6a8204a7771751c994e0adcc47706ff30
[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" "626967d030038aa7a2c15023400954c6a8204a7771751c994e0adcc47706ff30", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking adler v0.2.2
[INFO] [stderr]     Checking cfg-expr v0.4.1
[INFO] [stderr]     Checking loggerv v0.7.2
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking target-spec v0.4.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking toml_edit v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.57
[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.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "626967d030038aa7a2c15023400954c6a8204a7771751c994e0adcc47706ff30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "626967d030038aa7a2c15023400954c6a8204a7771751c994e0adcc47706ff30", kill_on_drop: false }`
[INFO] [stdout] 626967d030038aa7a2c15023400954c6a8204a7771751c994e0adcc47706ff30