[INFO] cloning repository https://github.com/TakutoYoshikai/violet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TakutoYoshikai/violet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTakutoYoshikai%2Fviolet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTakutoYoshikai%2Fviolet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cb467a367ecc151a9090790c8865a4ad995b8fc
[INFO] checking TakutoYoshikai/violet against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTakutoYoshikai%2Fviolet" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TakutoYoshikai/violet on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TakutoYoshikai/violet
[INFO] finished tweaking git repo https://github.com/TakutoYoshikai/violet
[INFO] tweaked toml for git repo https://github.com/TakutoYoshikai/violet written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/TakutoYoshikai/violet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rsntp v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee49c30d14a72114cbe614e5bed13912adc3033565b734b879606f7c0d69bc21
[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" "ee49c30d14a72114cbe614e5bed13912adc3033565b734b879606f7c0d69bc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee49c30d14a72114cbe614e5bed13912adc3033565b734b879606f7c0d69bc21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee49c30d14a72114cbe614e5bed13912adc3033565b734b879606f7c0d69bc21", kill_on_drop: false }`
[INFO] [stdout] ee49c30d14a72114cbe614e5bed13912adc3033565b734b879606f7c0d69bc21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f6cecf5647e3c8dede843ca2f89895e24339c5199a8296a1c6f734611ae57de
[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" "0f6cecf5647e3c8dede843ca2f89895e24339c5199a8296a1c6f734611ae57de", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking bytebuffer v0.2.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking block-modes v0.3.3
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking rsntp v2.0.0
[INFO] [stderr]     Checking violet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.61s
[INFO] running `Command { std: "docker" "inspect" "0f6cecf5647e3c8dede843ca2f89895e24339c5199a8296a1c6f734611ae57de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f6cecf5647e3c8dede843ca2f89895e24339c5199a8296a1c6f734611ae57de", kill_on_drop: false }`
[INFO] [stdout] 0f6cecf5647e3c8dede843ca2f89895e24339c5199a8296a1c6f734611ae57de