[INFO] cloning repository https://github.com/jackwillis/font-metrics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackwillis/font-metrics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackwillis%2Ffont-metrics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackwillis%2Ffont-metrics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c24318bffa11feeb118b379eca016471bb5633a5
[INFO] checking jackwillis/font-metrics against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackwillis%2Ffont-metrics" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackwillis/font-metrics on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jackwillis/font-metrics
[INFO] finished tweaking git repo https://github.com/jackwillis/font-metrics
[INFO] tweaked toml for git repo https://github.com/jackwillis/font-metrics written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jackwillis/font-metrics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", 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] 83c4528a4aefd14418962879f1d919d82347028d0a8504997a8616267e2b1a96
[INFO] running `Command { std: "docker" "start" "-a" "83c4528a4aefd14418962879f1d919d82347028d0a8504997a8616267e2b1a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83c4528a4aefd14418962879f1d919d82347028d0a8504997a8616267e2b1a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c4528a4aefd14418962879f1d919d82347028d0a8504997a8616267e2b1a96", kill_on_drop: false }`
[INFO] [stdout] 83c4528a4aefd14418962879f1d919d82347028d0a8504997a8616267e2b1a96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 338cd183f045126c9fe4ad0c2acca29038c228bf110d1894ee02956a595436d8
[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" "338cd183f045126c9fe4ad0c2acca29038c228bf110d1894ee02956a595436d8", kill_on_drop: false }`
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking pom v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking postscript v0.11.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking num-integer v0.1.38
[INFO] [stderr]     Checking approx v0.2.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese 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 unreachable v0.1.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking type1-encoding-parser v0.1.0
[INFO] [stderr]     Checking adobe-cmap-parser v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking rusttype v0.6.1
[INFO] [stderr]     Checking euclid v0.15.6
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking lopdf v0.15.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking pdf-extract v0.4.3
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking font_metrics v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `,`, `.`, `?`, `}`, or an operator, found reserved identifier `_`
[INFO] [stdout]    --> bin/fm-fit.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |             "russian" => include_str!("../resources/russian.example.tex")
[INFO] [stdout]     |                       -- while parsing the `match` arm starting here     - expected one of `,`, `.`, `?`, `}`, or an operator
[INFO] [stdout] 181 |             _ => "uh oh",
[INFO] [stdout]     |             ^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `English`
[INFO] [stdout]   --> bin/fm-darkness.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     English,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Russian`
[INFO] [stdout]   --> bin/fm-darkness.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Russian,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Custom`
[INFO] [stdout]   --> bin/fm-darkness.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Custom(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `,`, `.`, `?`, `}`, or an operator, found reserved identifier `_`
[INFO] [stdout]    --> bin/fm-fit.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |             "russian" => include_str!("../resources/russian.example.tex")
[INFO] [stdout]     |                       -- while parsing the `match` arm starting here     - expected one of `,`, `.`, `?`, `}`, or an operator
[INFO] [stdout] 181 |             _ => "uh oh",
[INFO] [stdout]     |             ^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `English`
[INFO] [stdout]   --> bin/fm-darkness.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     English,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Russian`
[INFO] [stdout]   --> bin/fm-darkness.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Russian,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Custom`
[INFO] [stdout]   --> bin/fm-darkness.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Custom(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `font_metrics`
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "338cd183f045126c9fe4ad0c2acca29038c228bf110d1894ee02956a595436d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "338cd183f045126c9fe4ad0c2acca29038c228bf110d1894ee02956a595436d8", kill_on_drop: false }`
[INFO] [stdout] 338cd183f045126c9fe4ad0c2acca29038c228bf110d1894ee02956a595436d8