[INFO] cloning repository https://github.com/Heiss/blades-heading
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Heiss/blades-heading" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeiss%2Fblades-heading", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeiss%2Fblades-heading'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 646ae3b1394da38af13182f6d6c50a5b7dac8077
[INFO] checking Heiss/blades-heading against master#e9271846294c4ee5bd7706df68180320c0b5ff20 for pr-119820-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeiss%2Fblades-heading" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Heiss/blades-heading on toolchain e9271846294c4ee5bd7706df68180320c0b5ff20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Heiss/blades-heading
[INFO] finished tweaking git repo https://github.com/Heiss/blades-heading
[INFO] tweaked toml for git repo https://github.com/Heiss/blades-heading written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Heiss/blades-heading already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/grego/blades`
[INFO] [stderr]     Updating git submodule `https://github.com/grego/casper`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/grego/ramhorns`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a55f342e0f0525d169561046c989708324cf1512e5d74bea1bfc9282c59fb408
[INFO] running `Command { std: "docker" "start" "-a" "a55f342e0f0525d169561046c989708324cf1512e5d74bea1bfc9282c59fb408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a55f342e0f0525d169561046c989708324cf1512e5d74bea1bfc9282c59fb408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55f342e0f0525d169561046c989708324cf1512e5d74bea1bfc9282c59fb408", kill_on_drop: false }`
[INFO] [stdout] a55f342e0f0525d169561046c989708324cf1512e5d74bea1bfc9282c59fb408
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 203380d6f5b0dd474ed30c14f15c2e8a0402cfc09357968d6b2c61865629315c
[INFO] running `Command { std: "docker" "start" "-a" "203380d6f5b0dd474ed30c14f15c2e8a0402cfc09357968d6b2c61865629315c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.35
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling pulldown-cmark v0.9.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling bae v0.1.7
[INFO] [stderr]    Compiling ramhorns-derive v0.13.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking cmark-syntax v0.3.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking serde-cmd v0.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking ramhorns v0.13.0 (https://github.com/grego/ramhorns?branch=shorthand#ffd11bfe)
[INFO] [stderr]     Checking blades v0.3.0 (https://github.com/grego/blades#e596b573)
[INFO] [stderr]     Checking blades-heading v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pages.par_iter_mut().for_each(|mut page| {
[INFO] [stdout]    |                                    ----^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:63:36
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pages.par_iter_mut().for_each(|mut page| {
[INFO] [stdout]    |                                    ----^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.08s
[INFO] running `Command { std: "docker" "inspect" "203380d6f5b0dd474ed30c14f15c2e8a0402cfc09357968d6b2c61865629315c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "203380d6f5b0dd474ed30c14f15c2e8a0402cfc09357968d6b2c61865629315c", kill_on_drop: false }`
[INFO] [stdout] 203380d6f5b0dd474ed30c14f15c2e8a0402cfc09357968d6b2c61865629315c