[INFO] fetching crate undo 0.51.0...
[INFO] checking undo-0.51.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate undo 0.51.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate undo 0.51.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate undo 0.51.0
[INFO] finished tweaking crates.io crate undo 0.51.0
[INFO] tweaked toml for crates.io crate undo 0.51.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate undo 0.51.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dbd66c382fb42a5d93f26ec6f69bd734e8d10d36350fa67edbde1a9b60a024e
[INFO] running `Command { std: "docker" "start" "-a" "7dbd66c382fb42a5d93f26ec6f69bd734e8d10d36350fa67edbde1a9b60a024e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dbd66c382fb42a5d93f26ec6f69bd734e8d10d36350fa67edbde1a9b60a024e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dbd66c382fb42a5d93f26ec6f69bd734e8d10d36350fa67edbde1a9b60a024e", kill_on_drop: false }`
[INFO] [stdout] 7dbd66c382fb42a5d93f26ec6f69bd734e8d10d36350fa67edbde1a9b60a024e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f776c1dd6fdf8f5a2a331f37e1545b877eb2deaef0e8545247350e00dba9f7f
[INFO] running `Command { std: "docker" "start" "-a" "9f776c1dd6fdf8f5a2a331f37e1545b877eb2deaef0e8545247350e00dba9f7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking undo v0.51.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.31s
[INFO] running `Command { std: "docker" "inspect" "9f776c1dd6fdf8f5a2a331f37e1545b877eb2deaef0e8545247350e00dba9f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f776c1dd6fdf8f5a2a331f37e1545b877eb2deaef0e8545247350e00dba9f7f", kill_on_drop: false }`
[INFO] [stdout] 9f776c1dd6fdf8f5a2a331f37e1545b877eb2deaef0e8545247350e00dba9f7f