[INFO] fetching crate serde_stacker 0.1.12...
[INFO] checking serde_stacker-0.1.12 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate serde_stacker 0.1.12 into /workspace/builds/worker-4-tc1/source
[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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_stacker 0.1.12 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded psm v0.1.25
[INFO] [stderr]   Downloaded stacker v0.1.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 426769d92abb997180688fa1dcc4ba10a028c2afae35d7d587637920e4b26bb3
[INFO] running `Command { std: "docker" "start" "-a" "426769d92abb997180688fa1dcc4ba10a028c2afae35d7d587637920e4b26bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "426769d92abb997180688fa1dcc4ba10a028c2afae35d7d587637920e4b26bb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "426769d92abb997180688fa1dcc4ba10a028c2afae35d7d587637920e4b26bb3", kill_on_drop: false }`
[INFO] [stdout] 426769d92abb997180688fa1dcc4ba10a028c2afae35d7d587637920e4b26bb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e82e7b5a857d013c780b9af4e6400fb67701d96358fba7b7e8a550305d93405e
[INFO] running `Command { std: "docker" "start" "-a" "e82e7b5a857d013c780b9af4e6400fb67701d96358fba7b7e8a550305d93405e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling serde_json v1.0.139
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking ryu v1.0.19
[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 7.00s
[INFO] running `Command { std: "docker" "inspect" "e82e7b5a857d013c780b9af4e6400fb67701d96358fba7b7e8a550305d93405e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e82e7b5a857d013c780b9af4e6400fb67701d96358fba7b7e8a550305d93405e", kill_on_drop: false }`
[INFO] [stdout] e82e7b5a857d013c780b9af4e6400fb67701d96358fba7b7e8a550305d93405e