[INFO] cloning repository https://github.com/mmirolim/algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmirolim/algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmirolim%2Falgorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmirolim%2Falgorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07bb968d8fc5e48b709075258fdb447dcb3fd78b
[INFO] checking mmirolim/algorithms against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmirolim%2Falgorithms" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmirolim/algorithms on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmirolim/algorithms
[INFO] finished tweaking git repo https://github.com/mmirolim/algorithms
[INFO] tweaked toml for git repo https://github.com/mmirolim/algorithms written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/mmirolim/algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 912df1d121d68de65bfe3cf405e6c414c0430b2f37291501b1ef7db844939cce
[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" "912df1d121d68de65bfe3cf405e6c414c0430b2f37291501b1ef7db844939cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "912df1d121d68de65bfe3cf405e6c414c0430b2f37291501b1ef7db844939cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "912df1d121d68de65bfe3cf405e6c414c0430b2f37291501b1ef7db844939cce", kill_on_drop: false }`
[INFO] [stdout] 912df1d121d68de65bfe3cf405e6c414c0430b2f37291501b1ef7db844939cce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f126fd46ebe2d3e94ae3d8a805fe30903f75d7f1743dd6d2db9a57dfd01c4b21
[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" "f126fd46ebe2d3e94ae3d8a805fe30903f75d7f1743dd6d2db9a57dfd01c4b21", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking criterion-plot v0.3.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking tinytemplate v1.0.1
[INFO] [stderr]     Checking algos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]     Checking criterion v0.2.9
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.05s
[INFO] running `Command { std: "docker" "inspect" "f126fd46ebe2d3e94ae3d8a805fe30903f75d7f1743dd6d2db9a57dfd01c4b21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f126fd46ebe2d3e94ae3d8a805fe30903f75d7f1743dd6d2db9a57dfd01c4b21", kill_on_drop: false }`
[INFO] [stdout] f126fd46ebe2d3e94ae3d8a805fe30903f75d7f1743dd6d2db9a57dfd01c4b21