[INFO] fetching crate form 0.7.0...
[INFO] checking form-0.7.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate form 0.7.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate form 0.7.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate form 0.7.0
[INFO] finished tweaking crates.io crate form 0.7.0
[INFO] tweaked toml for crates.io crate form 0.7.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate form 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cc6a4ec3f2248e0da9dd835d031718d654dcb7550f65db991ebab5a67598e3e
[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" "6cc6a4ec3f2248e0da9dd835d031718d654dcb7550f65db991ebab5a67598e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cc6a4ec3f2248e0da9dd835d031718d654dcb7550f65db991ebab5a67598e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc6a4ec3f2248e0da9dd835d031718d654dcb7550f65db991ebab5a67598e3e", kill_on_drop: false }`
[INFO] [stdout] 6cc6a4ec3f2248e0da9dd835d031718d654dcb7550f65db991ebab5a67598e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] cc6752de1980400ce8d8f990ca39981e0c0cbffb320a6f099131d17a885c50f0
[INFO] running `Command { std: "docker" "start" "-a" "cc6752de1980400ce8d8f990ca39981e0c0cbffb320a6f099131d17a885c50f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking form v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.04s
[INFO] running `Command { std: "docker" "inspect" "cc6752de1980400ce8d8f990ca39981e0c0cbffb320a6f099131d17a885c50f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc6752de1980400ce8d8f990ca39981e0c0cbffb320a6f099131d17a885c50f0", kill_on_drop: false }`
[INFO] [stdout] cc6752de1980400ce8d8f990ca39981e0c0cbffb320a6f099131d17a885c50f0