[INFO] cloning repository https://github.com/johnchildren/rust-irc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnchildren/rust-irc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnchildren%2Frust-irc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnchildren%2Frust-irc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 712ec1e4fcd08647bc0505fb2f83da68a8303185
[INFO] checking johnchildren/rust-irc against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnchildren%2Frust-irc" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnchildren/rust-irc on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnchildren/rust-irc
[INFO] finished tweaking git repo https://github.com/johnchildren/rust-irc
[INFO] tweaked toml for git repo https://github.com/johnchildren/rust-irc written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/johnchildren/rust-irc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-io v0.1.2
[INFO] [stderr]   Downloaded bytes v0.4.4
[INFO] [stderr]   Downloaded net2 v0.2.30
[INFO] [stderr]   Downloaded libc v0.2.26
[INFO] [stderr]   Downloaded mio v0.6.9
[INFO] [stderr]   Downloaded tokio-core v0.1.8
[INFO] [stderr]   Downloaded rmp-serde v0.13.4
[INFO] [stderr]   Downloaded rmp v0.8.6
[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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46a0b432781756a69afff1698cb4396ee97128ed9f957bc470cc1d1013dc6e2a
[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" "46a0b432781756a69afff1698cb4396ee97128ed9f957bc470cc1d1013dc6e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46a0b432781756a69afff1698cb4396ee97128ed9f957bc470cc1d1013dc6e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a0b432781756a69afff1698cb4396ee97128ed9f957bc470cc1d1013dc6e2a", kill_on_drop: false }`
[INFO] [stdout] 46a0b432781756a69afff1698cb4396ee97128ed9f957bc470cc1d1013dc6e2a
[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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] 489db967be9b0b48d71bb402753ea1e0cb2922ed1634b5f206321f122e22dfaa
[INFO] running `Command { std: "docker" "start" "-a" "489db967be9b0b48d71bb402753ea1e0cb2922ed1634b5f206321f122e22dfaa", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking serde v1.0.10
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking net2 v0.2.30
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking bytes v0.4.4
[INFO] [stderr]     Checking rmp v0.8.6
[INFO] [stderr]     Checking mio v0.6.9
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]     Checking tokio-io v0.1.2
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking tokio-core v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.10
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking rmp-serde v0.13.4
[INFO] [stderr]     Checking rust-irc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.47s
[INFO] running `Command { std: "docker" "inspect" "489db967be9b0b48d71bb402753ea1e0cb2922ed1634b5f206321f122e22dfaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489db967be9b0b48d71bb402753ea1e0cb2922ed1634b5f206321f122e22dfaa", kill_on_drop: false }`
[INFO] [stdout] 489db967be9b0b48d71bb402753ea1e0cb2922ed1634b5f206321f122e22dfaa