[INFO] fetching crate s3wf2 0.3.0...
[INFO] checking s3wf2-0.3.0 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate s3wf2 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate s3wf2 0.3.0 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate s3wf2 0.3.0
[INFO] finished tweaking crates.io crate s3wf2 0.3.0
[INFO] tweaked toml for crates.io crate s3wf2 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate s3wf2 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memory_units v0.4.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.55
[INFO] [stderr]   Downloaded log v0.4.10
[INFO] [stderr]   Downloaded wee_alloc v0.4.5
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.55
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.55
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.55
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e3e074cab352d68fa64f8095874b1fcf0db5c4b2aad93ea39f6d55d01fe560b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8e3e074cab352d68fa64f8095874b1fcf0db5c4b2aad93ea39f6d55d01fe560b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e3e074cab352d68fa64f8095874b1fcf0db5c4b2aad93ea39f6d55d01fe560b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3e074cab352d68fa64f8095874b1fcf0db5c4b2aad93ea39f6d55d01fe560b", kill_on_drop: false }`
[INFO] [stdout] 8e3e074cab352d68fa64f8095874b1fcf0db5c4b2aad93ea39f6d55d01fe560b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1deeb2b9b3feee3274db0d0effd6f365d180fe8b175c8e53eb12ac2f4180b5f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b1deeb2b9b3feee3274db0d0effd6f365d180fe8b175c8e53eb12ac2f4180b5f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking s3wf2 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "b1deeb2b9b3feee3274db0d0effd6f365d180fe8b175c8e53eb12ac2f4180b5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1deeb2b9b3feee3274db0d0effd6f365d180fe8b175c8e53eb12ac2f4180b5f", kill_on_drop: false }`
[INFO] [stdout] b1deeb2b9b3feee3274db0d0effd6f365d180fe8b175c8e53eb12ac2f4180b5f