[INFO] fetching crate semver-explain 0.2.2...
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] crate semver-explain 0.2.2 is already in cache
[INFO] checking semver-explain-0.2.2 against master#21de280cccb4eb02ead6bf0af40e2355a9136d6f for pr-100043
[INFO] extracting crate semver-explain 0.2.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate semver-explain 0.2.2 on toolchain 21de280cccb4eb02ead6bf0af40e2355a9136d6f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semver-explain 0.2.2
[INFO] finished tweaking crates.io crate semver-explain 0.2.2
[INFO] tweaked toml for crates.io crate semver-explain 0.2.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate semver-explain 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0879b193621cb8321e08e0811433efacd66319b0cbfbaeceed80e882afd5a2b4
[INFO] running `Command { std: "docker" "start" "-a" "0879b193621cb8321e08e0811433efacd66319b0cbfbaeceed80e882afd5a2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0879b193621cb8321e08e0811433efacd66319b0cbfbaeceed80e882afd5a2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0879b193621cb8321e08e0811433efacd66319b0cbfbaeceed80e882afd5a2b4", kill_on_drop: false }`
[INFO] [stdout] 0879b193621cb8321e08e0811433efacd66319b0cbfbaeceed80e882afd5a2b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2738b713f1ed510b30f06358bf9d9c3f68f02bfdb22c13be35bea3eb8fda861
[INFO] running `Command { std: "docker" "start" "-a" "b2738b713f1ed510b30f06358bf9d9c3f68f02bfdb22c13be35bea3eb8fda861", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking semver-explain v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.15s
[INFO] running `Command { std: "docker" "inspect" "b2738b713f1ed510b30f06358bf9d9c3f68f02bfdb22c13be35bea3eb8fda861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2738b713f1ed510b30f06358bf9d9c3f68f02bfdb22c13be35bea3eb8fda861", kill_on_drop: false }`
[INFO] [stdout] b2738b713f1ed510b30f06358bf9d9c3f68f02bfdb22c13be35bea3eb8fda861