[INFO] fetching crate persistent-buff 0.2.6...
[INFO] checking persistent-buff-0.2.6 against master#53709aedba198874ee50769f19f1e9ab00798bb5 for pr-108221
[INFO] extracting crate persistent-buff 0.2.6 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate persistent-buff 0.2.6 on toolchain 53709aedba198874ee50769f19f1e9ab00798bb5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate persistent-buff 0.2.6
[INFO] finished tweaking crates.io crate persistent-buff 0.2.6
[INFO] tweaked toml for crates.io crate persistent-buff 0.2.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate persistent-buff 0.2.6 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" "+53709aedba198874ee50769f19f1e9ab00798bb5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded defmt-rtt v0.4.0
[INFO] [stderr]   Downloaded panic-probe v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:542af8c9c691278ea8427c9f55ce1005b509eeebcbbcbc893145cd6832507671" "/opt/rustwide/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2dad66fdc8f2dd2e346e0d9a70106bafae49e3550df729f4064ad4952b582c6
[INFO] running `Command { std: "docker" "start" "-a" "a2dad66fdc8f2dd2e346e0d9a70106bafae49e3550df729f4064ad4952b582c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2dad66fdc8f2dd2e346e0d9a70106bafae49e3550df729f4064ad4952b582c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2dad66fdc8f2dd2e346e0d9a70106bafae49e3550df729f4064ad4952b582c6", kill_on_drop: false }`
[INFO] [stdout] a2dad66fdc8f2dd2e346e0d9a70106bafae49e3550df729f4064ad4952b582c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:542af8c9c691278ea8427c9f55ce1005b509eeebcbbcbc893145cd6832507671" "/opt/rustwide/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56480ecd4d52df8671b4990dffa2697503fbca1d76931e11a496bdcb60145b95
[INFO] running `Command { std: "docker" "start" "-a" "56480ecd4d52df8671b4990dffa2697503fbca1d76931e11a496bdcb60145b95", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling defmt v0.3.2
[INFO] [stderr]    Compiling defmt-macros v0.3.3
[INFO] [stderr]    Compiling defmt-parser v0.3.1
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking critical-section v1.1.1
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]    Compiling defmt-rtt v0.4.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.2
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling panic-probe v0.3.0
[INFO] [stderr]     Checking persistent-buff v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.22s
[INFO] running `Command { std: "docker" "inspect" "56480ecd4d52df8671b4990dffa2697503fbca1d76931e11a496bdcb60145b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56480ecd4d52df8671b4990dffa2697503fbca1d76931e11a496bdcb60145b95", kill_on_drop: false }`
[INFO] [stdout] 56480ecd4d52df8671b4990dffa2697503fbca1d76931e11a496bdcb60145b95