[INFO] fetching crate mx-tester 0.4.0-pre1...
[INFO] checking mx-tester-0.4.0-pre1 against master#18a6d911caba59605eb03db1452848a85d2e5879 for pr-112743
[INFO] extracting crate mx-tester 0.4.0-pre1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate mx-tester 0.4.0-pre1 on toolchain 18a6d911caba59605eb03db1452848a85d2e5879
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mx-tester 0.4.0-pre1
[INFO] finished tweaking crates.io crate mx-tester 0.4.0-pre1
[INFO] tweaked toml for crates.io crate mx-tester 0.4.0-pre1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate mx-tester 0.4.0-pre1 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" "+18a6d911caba59605eb03db1452848a85d2e5879" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f1c417d27dbc3f5354658760af9a373a3a0b9942faf85c638028282ea6d5f1f
[INFO] running `Command { std: "docker" "start" "-a" "9f1c417d27dbc3f5354658760af9a373a3a0b9942faf85c638028282ea6d5f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f1c417d27dbc3f5354658760af9a373a3a0b9942faf85c638028282ea6d5f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f1c417d27dbc3f5354658760af9a373a3a0b9942faf85c638028282ea6d5f1f", kill_on_drop: false }`
[INFO] [stdout] 9f1c417d27dbc3f5354658760af9a373a3a0b9942faf85c638028282ea6d5f1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+18a6d911caba59605eb03db1452848a85d2e5879" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8f55233262b145f94e871478c667c504f5db2c095159cdf7895a7f702f78dfd
[INFO] running `Command { std: "docker" "start" "-a" "f8f55233262b145f94e871478c667c504f5db2c095159cdf7895a7f702f78dfd", kill_on_drop: false }`
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[INFO] [stderr]     Checking mx-tester v0.4.0-pre1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.56s
[INFO] running `Command { std: "docker" "inspect" "f8f55233262b145f94e871478c667c504f5db2c095159cdf7895a7f702f78dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8f55233262b145f94e871478c667c504f5db2c095159cdf7895a7f702f78dfd", kill_on_drop: false }`
[INFO] [stdout] f8f55233262b145f94e871478c667c504f5db2c095159cdf7895a7f702f78dfd