[INFO] cloning repository https://github.com/ckatzer4/mbox-prime
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ckatzer4/mbox-prime" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckatzer4%2Fmbox-prime", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckatzer4%2Fmbox-prime'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 691558e69a97eedb603f32fd069cbc7d148fe49d
[INFO] checking ckatzer4/mbox-prime against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckatzer4%2Fmbox-prime" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ckatzer4/mbox-prime 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 git repo https://github.com/ckatzer4/mbox-prime
[INFO] finished tweaking git repo https://github.com/ckatzer4/mbox-prime
[INFO] tweaked toml for git repo https://github.com/ckatzer4/mbox-prime written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ckatzer4/mbox-prime 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 6f2fca655346254fb09c7abc4757717afe176da5f40e7a2847ba5b0c3e6a956c
[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" "6f2fca655346254fb09c7abc4757717afe176da5f40e7a2847ba5b0c3e6a956c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f2fca655346254fb09c7abc4757717afe176da5f40e7a2847ba5b0c3e6a956c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f2fca655346254fb09c7abc4757717afe176da5f40e7a2847ba5b0c3e6a956c", kill_on_drop: false }`
[INFO] [stdout] 6f2fca655346254fb09c7abc4757717afe176da5f40e7a2847ba5b0c3e6a956c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e39f98b9ac3677f26880ccadf823f155d946698a683c87818e8528b9406477ab
[INFO] running `Command { std: "docker" "start" "-a" "e39f98b9ac3677f26880ccadf823f155d946698a683c87818e8528b9406477ab", kill_on_drop: false }`
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking lazy_static v1.0.2
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking mbox-reader v0.1.0
[INFO] [stderr]    Compiling email v0.0.19 (https://github.com/ckatzer4/rust-email?rev=44a76b984c27f588be36c9cb69fa18310934c083#44a76b98)
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking tui v0.2.3
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking chrono v0.4.4
[INFO] [stderr]     Checking mbox-prime v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.99s
[INFO] running `Command { std: "docker" "inspect" "e39f98b9ac3677f26880ccadf823f155d946698a683c87818e8528b9406477ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39f98b9ac3677f26880ccadf823f155d946698a683c87818e8528b9406477ab", kill_on_drop: false }`
[INFO] [stdout] e39f98b9ac3677f26880ccadf823f155d946698a683c87818e8528b9406477ab