[INFO] cloning repository https://github.com/JPMoresmau/rust-linear
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JPMoresmau/rust-linear" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJPMoresmau%2Frust-linear", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJPMoresmau%2Frust-linear'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79bd3691378ff3f4a00fe1468aa8b09bba26bf3b
[INFO] checking JPMoresmau/rust-linear against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJPMoresmau%2Frust-linear" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JPMoresmau/rust-linear on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JPMoresmau/rust-linear
[INFO] finished tweaking git repo https://github.com/JPMoresmau/rust-linear
[INFO] tweaked toml for git repo https://github.com/JPMoresmau/rust-linear written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/JPMoresmau/rust-linear already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce0b313a15609f2544ad6a2fe29cdb2a70c21d3907139c6dd53e2fd2360749d9
[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" "ce0b313a15609f2544ad6a2fe29cdb2a70c21d3907139c6dd53e2fd2360749d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce0b313a15609f2544ad6a2fe29cdb2a70c21d3907139c6dd53e2fd2360749d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce0b313a15609f2544ad6a2fe29cdb2a70c21d3907139c6dd53e2fd2360749d9", kill_on_drop: false }`
[INFO] [stdout] ce0b313a15609f2544ad6a2fe29cdb2a70c21d3907139c6dd53e2fd2360749d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a0fc3712a43a3ebe0c0027f3a29d7d6dd2aee7d15eedc2dff6e55a88efcede3
[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" "3a0fc3712a43a3ebe0c0027f3a29d7d6dd2aee7d15eedc2dff6e55a88efcede3", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex v1.1.2
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking linear v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.95s
[INFO] running `Command { std: "docker" "inspect" "3a0fc3712a43a3ebe0c0027f3a29d7d6dd2aee7d15eedc2dff6e55a88efcede3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a0fc3712a43a3ebe0c0027f3a29d7d6dd2aee7d15eedc2dff6e55a88efcede3", kill_on_drop: false }`
[INFO] [stdout] 3a0fc3712a43a3ebe0c0027f3a29d7d6dd2aee7d15eedc2dff6e55a88efcede3