[INFO] fetching crate similar 1.3.0...
[INFO] checking similar-1.3.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate similar 1.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate similar 1.3.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate similar 1.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate similar 1.3.0
[INFO] tweaked toml for crates.io crate similar 1.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate similar 1.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded similar v1.2.2
[INFO] [stderr]   Downloaded insta v1.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6a0fffe5506aaada28a239a3ec00abe4723549bd556b36dc55c5208a23b92eb7
[INFO] running `Command { std: "docker" "start" "-a" "6a0fffe5506aaada28a239a3ec00abe4723549bd556b36dc55c5208a23b92eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a0fffe5506aaada28a239a3ec00abe4723549bd556b36dc55c5208a23b92eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0fffe5506aaada28a239a3ec00abe4723549bd556b36dc55c5208a23b92eb7", kill_on_drop: false }`
[INFO] [stdout] 6a0fffe5506aaada28a239a3ec00abe4723549bd556b36dc55c5208a23b92eb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 753a9e3de50e59783cea94250d682a71199d0489701f9c0db8276f0c988fc35d
[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" "753a9e3de50e59783cea94250d682a71199d0489701f9c0db8276f0c988fc35d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking similar v1.2.2
[INFO] [stderr]     Checking similar v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking console v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.121
[INFO] [stderr]     Checking serde v1.0.121
[INFO] [stderr]     Checking serde_yaml v0.8.15
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking insta v1.6.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.28s
[INFO] running `Command { std: "docker" "inspect" "753a9e3de50e59783cea94250d682a71199d0489701f9c0db8276f0c988fc35d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "753a9e3de50e59783cea94250d682a71199d0489701f9c0db8276f0c988fc35d", kill_on_drop: false }`
[INFO] [stdout] 753a9e3de50e59783cea94250d682a71199d0489701f9c0db8276f0c988fc35d