[INFO] fetching crate cargo-muttest 0.0.0-reserved...
[INFO] testing cargo-muttest-0.0.0-reserved against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate cargo-muttest 0.0.0-reserved into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate cargo-muttest 0.0.0-reserved
[INFO] finished tweaking crates.io crate cargo-muttest 0.0.0-reserved
[INFO] tweaked toml for crates.io crate cargo-muttest 0.0.0-reserved written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-muttest 0.0.0-reserved on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cargo-muttest 0.0.0-reserved 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50ba6b3b44c873523fc0970db52df35129ea78e471a5a08e89a0b1ad04ceeda2
[INFO] running `Command { std: "docker" "start" "-a" "50ba6b3b44c873523fc0970db52df35129ea78e471a5a08e89a0b1ad04ceeda2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50ba6b3b44c873523fc0970db52df35129ea78e471a5a08e89a0b1ad04ceeda2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ba6b3b44c873523fc0970db52df35129ea78e471a5a08e89a0b1ad04ceeda2", kill_on_drop: false }`
[INFO] [stdout] 50ba6b3b44c873523fc0970db52df35129ea78e471a5a08e89a0b1ad04ceeda2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7595db7af58703cb74560d12ddeca2334929df3c1fa9f1250be5abacb66b542a
[INFO] running `Command { std: "docker" "start" "-a" "7595db7af58703cb74560d12ddeca2334929df3c1fa9f1250be5abacb66b542a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-muttest v0.0.0-reserved (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "7595db7af58703cb74560d12ddeca2334929df3c1fa9f1250be5abacb66b542a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7595db7af58703cb74560d12ddeca2334929df3c1fa9f1250be5abacb66b542a", kill_on_drop: false }`
[INFO] [stdout] 7595db7af58703cb74560d12ddeca2334929df3c1fa9f1250be5abacb66b542a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 163aaa57252533f0d5184f2b1b136834abddb90159684c8b8853ec39793cda0a
[INFO] running `Command { std: "docker" "start" "-a" "163aaa57252533f0d5184f2b1b136834abddb90159684c8b8853ec39793cda0a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] running `Command { std: "docker" "inspect" "163aaa57252533f0d5184f2b1b136834abddb90159684c8b8853ec39793cda0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "163aaa57252533f0d5184f2b1b136834abddb90159684c8b8853ec39793cda0a", kill_on_drop: false }`
[INFO] [stdout] 163aaa57252533f0d5184f2b1b136834abddb90159684c8b8853ec39793cda0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5364bc686e96d3ee63b05bbff07d21e84764bd20c57cacc40c98956b09bd98bd
[INFO] running `Command { std: "docker" "start" "-a" "5364bc686e96d3ee63b05bbff07d21e84764bd20c57cacc40c98956b09bd98bd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `Command { std: "docker" "inspect" "5364bc686e96d3ee63b05bbff07d21e84764bd20c57cacc40c98956b09bd98bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5364bc686e96d3ee63b05bbff07d21e84764bd20c57cacc40c98956b09bd98bd", kill_on_drop: false }`
[INFO] [stdout] 5364bc686e96d3ee63b05bbff07d21e84764bd20c57cacc40c98956b09bd98bd