[INFO] fetching crate qrgen 0.1.0...
[INFO] checking qrgen-0.1.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate qrgen 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate qrgen 0.1.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qrgen 0.1.0
[INFO] finished tweaking crates.io crate qrgen 0.1.0
[INFO] tweaked toml for crates.io crate qrgen 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate qrgen 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86c8132d74a057b84e01436894f3b587bf0fe6e8d7db1dcb96585db4049c58f2
[INFO] running `Command { std: "docker" "start" "-a" "86c8132d74a057b84e01436894f3b587bf0fe6e8d7db1dcb96585db4049c58f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86c8132d74a057b84e01436894f3b587bf0fe6e8d7db1dcb96585db4049c58f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86c8132d74a057b84e01436894f3b587bf0fe6e8d7db1dcb96585db4049c58f2", kill_on_drop: false }`
[INFO] [stdout] 86c8132d74a057b84e01436894f3b587bf0fe6e8d7db1dcb96585db4049c58f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 954f3c33a333f6d6bf403073f6059e7f8cef51b001d16732548a4c96e4c6c07f
[INFO] running `Command { std: "docker" "start" "-a" "954f3c33a333f6d6bf403073f6059e7f8cef51b001d16732548a4c96e4c6c07f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking qrcodegen v1.6.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking qrgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.97s
[INFO] running `Command { std: "docker" "inspect" "954f3c33a333f6d6bf403073f6059e7f8cef51b001d16732548a4c96e4c6c07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954f3c33a333f6d6bf403073f6059e7f8cef51b001d16732548a4c96e4c6c07f", kill_on_drop: false }`
[INFO] [stdout] 954f3c33a333f6d6bf403073f6059e7f8cef51b001d16732548a4c96e4c6c07f