[INFO] fetching crate serde_stacker 0.1.12...
[INFO] checking serde_stacker-0.1.12 against try#0c7fed2b7584d310ca8221267fa1b3bec4df427f for pr-133502-4
[INFO] extracting crate serde_stacker 0.1.12 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate serde_stacker 0.1.12 on toolchain 0c7fed2b7584d310ca8221267fa1b3bec4df427f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_stacker 0.1.12
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde_stacker 0.1.12
[INFO] tweaked toml for crates.io crate serde_stacker 0.1.12 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate serde_stacker 0.1.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6b8aa9038808c06c642a56d9a5ea51178148aa999a1f0c8d8d8086df927eb7f
[INFO] running `Command { std: "docker" "start" "-a" "b6b8aa9038808c06c642a56d9a5ea51178148aa999a1f0c8d8d8086df927eb7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6b8aa9038808c06c642a56d9a5ea51178148aa999a1f0c8d8d8086df927eb7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b8aa9038808c06c642a56d9a5ea51178148aa999a1f0c8d8d8086df927eb7f", kill_on_drop: false }`
[INFO] [stdout] b6b8aa9038808c06c642a56d9a5ea51178148aa999a1f0c8d8d8086df927eb7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0c7fed2b7584d310ca8221267fa1b3bec4df427f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d7f43b2b2e6c58fec965840a9e4c6d548f0025481d4f99f592983c474ef6b3e
[INFO] running `Command { std: "docker" "start" "-a" "3d7f43b2b2e6c58fec965840a9e4c6d548f0025481d4f99f592983c474ef6b3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling serde_json v1.0.139
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking ryu v1.0.19
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]    Compiling psm v0.1.25
[INFO] [stderr]    Compiling stacker v0.1.19
[INFO] [stderr]     Checking serde_stacker v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.10s
[INFO] running `Command { std: "docker" "inspect" "3d7f43b2b2e6c58fec965840a9e4c6d548f0025481d4f99f592983c474ef6b3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d7f43b2b2e6c58fec965840a9e4c6d548f0025481d4f99f592983c474ef6b3e", kill_on_drop: false }`
[INFO] [stdout] 3d7f43b2b2e6c58fec965840a9e4c6d548f0025481d4f99f592983c474ef6b3e