[INFO] cloning repository https://github.com/bokuweb/wu-diff-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bokuweb/wu-diff-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbokuweb%2Fwu-diff-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbokuweb%2Fwu-diff-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 442be7095f7ef710c6ef74c004a54940917d7143
[INFO] checking bokuweb/wu-diff-rs against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbokuweb%2Fwu-diff-rs" "/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/bokuweb/wu-diff-rs on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bokuweb/wu-diff-rs
[INFO] finished tweaking git repo https://github.com/bokuweb/wu-diff-rs
[INFO] tweaked toml for git repo https://github.com/bokuweb/wu-diff-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/bokuweb/wu-diff-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo_metadata v0.5.4
[INFO] [stderr]   Downloaded enum_primitive v0.1.1
[INFO] [stderr]   Downloaded proc-macro2 v0.3.6
[INFO] [stderr]   Downloaded quick-error v1.2.1
[INFO] [stderr]   Downloaded handlebars v0.31.0
[INFO] [stderr]   Downloaded pest v1.0.6
[INFO] [stderr]   Downloaded backtrace v0.3.6
[INFO] [stderr]   Downloaded serde v1.0.42
[INFO] [stderr]   Downloaded itertools-num v0.1.1
[INFO] [stderr]   Downloaded quote v0.5.2
[INFO] [stderr]   Downloaded png v0.11.0
[INFO] [stderr]   Downloaded getopts v0.2.17
[INFO] [stderr]   Downloaded termion v1.5.1
[INFO] [stderr]   Downloaded if_chain v0.1.2
[INFO] [stderr]   Downloaded cc v1.0.10
[INFO] [stderr]   Downloaded criterion-stats v0.2.3
[INFO] [stderr]   Downloaded inflate v0.3.4
[INFO] [stderr]   Downloaded criterion-plot v0.2.3
[INFO] [stderr]   Downloaded chrono v0.4.2
[INFO] [stderr]   Downloaded byteorder v1.2.2
[INFO] [stderr]   Downloaded cast v0.2.2
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded rustc_version v0.2.2
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded textwrap v0.9.0
[INFO] [stderr]   Downloaded clap v2.31.2
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded image v0.18.0
[INFO] [stderr]   Downloaded serde_derive v1.0.42
[INFO] [stderr]   Downloaded simplelog v0.5.1
[INFO] [stderr]   Downloaded pest_derive v1.0.7
[INFO] [stderr]   Downloaded regex-syntax v0.5.5
[INFO] [stderr]   Downloaded criterion v0.2.3
[INFO] [stderr]   Downloaded serde_derive_internals v0.23.1
[INFO] [stderr]   Downloaded serde_json v1.0.16
[INFO] [stderr]   Downloaded gif v0.9.2
[INFO] [stderr]   Downloaded syn v0.13.1
[INFO] [stderr]   Downloaded rayon-core v1.4.0
[INFO] [stderr]   Downloaded deflate v0.7.18
[INFO] [stderr]   Downloaded rayon v1.0.1
[INFO] [stderr]   Downloaded term v0.5.1
[INFO] [stderr]   Downloaded regex v1.0.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.1
[INFO] [stderr]   Downloaded atty v0.2.9
[INFO] [stderr]   Downloaded clippy v0.0.209
[INFO] [stderr]   Downloaded clippy_lints v0.0.209
[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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5feba9c6654978ef7d7eab5510a45e3cfb38265150f0289932cd7060c3763d5e
[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" "5feba9c6654978ef7d7eab5510a45e3cfb38265150f0289932cd7060c3763d5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5feba9c6654978ef7d7eab5510a45e3cfb38265150f0289932cd7060c3763d5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5feba9c6654978ef7d7eab5510a45e3cfb38265150f0289932cd7060c3763d5e", kill_on_drop: false }`
[INFO] [stdout] 5feba9c6654978ef7d7eab5510a45e3cfb38265150f0289932cd7060c3763d5e
[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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca7ef2cdb7a53f05faf49aa1ee7ee13cabe190aa529d679b2935e2bf6d79a85c
[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" "ca7ef2cdb7a53f05faf49aa1ee7ee13cabe190aa529d679b2935e2bf6d79a85c", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking serde v1.0.42
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking wu-diff v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking atty v0.2.9
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking regex-syntax v0.5.5
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking itertools-num v0.1.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking backtrace v0.3.6
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking criterion-stats v0.2.3
[INFO] [stderr]     Checking criterion-plot v0.2.3
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking simplelog v0.5.1
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling pest_derive v1.0.7
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking regex v0.2.10
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking serde_json v1.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.42
[INFO] [stderr]     Checking handlebars v0.31.0
[INFO] [stderr]     Checking criterion v0.2.3
[INFO] [stdout] warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> tests/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extern_prelude)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.68s
[INFO] running `Command { std: "docker" "inspect" "ca7ef2cdb7a53f05faf49aa1ee7ee13cabe190aa529d679b2935e2bf6d79a85c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7ef2cdb7a53f05faf49aa1ee7ee13cabe190aa529d679b2935e2bf6d79a85c", kill_on_drop: false }`
[INFO] [stdout] ca7ef2cdb7a53f05faf49aa1ee7ee13cabe190aa529d679b2935e2bf6d79a85c