[INFO] cloning repository https://github.com/mouri111/kunai
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mouri111/kunai" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmouri111%2Fkunai", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmouri111%2Fkunai'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2692a3435e264cc8e832e76a3593d2d77f64c4a
[INFO] checking mouri111/kunai against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmouri111%2Fkunai" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mouri111/kunai on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mouri111/kunai
[INFO] finished tweaking git repo https://github.com/mouri111/kunai
[INFO] tweaked toml for git repo https://github.com/mouri111/kunai written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mouri111/kunai already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1b240f3f026f41f4b980313ccfbceea01264a2802e171174a9d8af4e656ab63
[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" "c1b240f3f026f41f4b980313ccfbceea01264a2802e171174a9d8af4e656ab63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1b240f3f026f41f4b980313ccfbceea01264a2802e171174a9d8af4e656ab63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b240f3f026f41f4b980313ccfbceea01264a2802e171174a9d8af4e656ab63", kill_on_drop: false }`
[INFO] [stdout] c1b240f3f026f41f4b980313ccfbceea01264a2802e171174a9d8af4e656ab63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abf4fd30d14438bad3914e0595cd9f4742d9a80185ce4ab63a28b7f3bb0d94da
[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" "abf4fd30d14438bad3914e0595cd9f4742d9a80185ce4ab63a28b7f3bb0d94da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.0
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking rustc-ap-graphviz v610.0.0
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling rustc-ap-rustc_target v610.0.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]    Compiling rustc-ap-syntax v610.0.0
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling rustfmt-nightly v1.4.11
[INFO] [stderr]     Checking home v0.5.1
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]     Checking lock_api v0.3.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.3.2/src/lib.rs:89:42
[INFO] [stdout]    |
[INFO] [stdout] 89 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                          ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "abf4fd30d14438bad3914e0595cd9f4742d9a80185ce4ab63a28b7f3bb0d94da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf4fd30d14438bad3914e0595cd9f4742d9a80185ce4ab63a28b7f3bb0d94da", kill_on_drop: false }`
[INFO] [stdout] abf4fd30d14438bad3914e0595cd9f4742d9a80185ce4ab63a28b7f3bb0d94da