[INFO] fetching crate mq-conv 0.1.4...
[INFO] checking mq-conv-0.1.4 against try#1bdcb63291ccffc030f8223f6f978568dd240e3e for 155501-infallible-never-with-reservation
[INFO] extracting crate mq-conv 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mq-conv 0.1.4
[INFO] finished tweaking crates.io crate mq-conv 0.1.4
[INFO] tweaked toml for crates.io crate mq-conv 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mq-conv 0.1.4 on toolchain 1bdcb63291ccffc030f8223f6f978568dd240e3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mq-conv 0.1.4 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" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca1fd4b91c5e9c72721b5ff5c944df2421d93e83d42e1d3054d9662a91724f42
[INFO] running `Command { std: "docker" "start" "-a" "ca1fd4b91c5e9c72721b5ff5c944df2421d93e83d42e1d3054d9662a91724f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca1fd4b91c5e9c72721b5ff5c944df2421d93e83d42e1d3054d9662a91724f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca1fd4b91c5e9c72721b5ff5c944df2421d93e83d42e1d3054d9662a91724f42", kill_on_drop: false }`
[INFO] [stdout] ca1fd4b91c5e9c72721b5ff5c944df2421d93e83d42e1d3054d9662a91724f42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 378912e42f6e7a8ce0be7ef430ca805072e255eaa875ba1973fbbf1df9171723
[INFO] running `Command { std: "docker" "start" "-a" "378912e42f6e7a8ce0be7ef430ca805072e255eaa875ba1973fbbf1df9171723", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "378912e42f6e7a8ce0be7ef430ca805072e255eaa875ba1973fbbf1df9171723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "378912e42f6e7a8ce0be7ef430ca805072e255eaa875ba1973fbbf1df9171723", kill_on_drop: false }`
[INFO] [stdout] 378912e42f6e7a8ce0be7ef430ca805072e255eaa875ba1973fbbf1df9171723