[INFO] cloning repository https://github.com/garyemerson/du-view
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/garyemerson/du-view" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaryemerson%2Fdu-view", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaryemerson%2Fdu-view'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0cc2dd4b7c420190f0819b6770271049d0bbf0f0
[INFO] checking garyemerson/du-view against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaryemerson%2Fdu-view" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/garyemerson/du-view on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/garyemerson/du-view
[INFO] finished tweaking git repo https://github.com/garyemerson/du-view
[INFO] tweaked toml for git repo https://github.com/garyemerson/du-view written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/garyemerson/du-view 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-syntax v0.4.2
[INFO] [stderr]   Downloaded regex v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8130e0b3549a6b1190c98a9bdc507cec207c4a9d15941fe0ccd05677d0f6f5fe
[INFO] running `Command { std: "docker" "start" "-a" "8130e0b3549a6b1190c98a9bdc507cec207c4a9d15941fe0ccd05677d0f6f5fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8130e0b3549a6b1190c98a9bdc507cec207c4a9d15941fe0ccd05677d0f6f5fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8130e0b3549a6b1190c98a9bdc507cec207c4a9d15941fe0ccd05677d0f6f5fe", kill_on_drop: false }`
[INFO] [stdout] 8130e0b3549a6b1190c98a9bdc507cec207c4a9d15941fe0ccd05677d0f6f5fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbebcd72fca93316486a18fdbb79401266e4de1d4791b8e328c1cdbf852de54d
[INFO] running `Command { std: "docker" "start" "-a" "dbebcd72fca93316486a18fdbb79401266e4de1d4791b8e328c1cdbf852de54d", kill_on_drop: false }`
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]     Checking du-view v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/main.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &cap[2].trim_right_matches(|c| c == '/' || c == '\\')
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &cap[2].trim_end_matches(|c| c == '/' || c == '\\')
[INFO] [stdout]    |                         ~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut count = 0;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_count` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/main.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &cap[2].trim_right_matches(|c| c == '/' || c == '\\')
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &cap[2].trim_end_matches(|c| c == '/' || c == '\\')
[INFO] [stdout]    |                         ~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut count = 0;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_count` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "dbebcd72fca93316486a18fdbb79401266e4de1d4791b8e328c1cdbf852de54d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbebcd72fca93316486a18fdbb79401266e4de1d4791b8e328c1cdbf852de54d", kill_on_drop: false }`
[INFO] [stdout] dbebcd72fca93316486a18fdbb79401266e4de1d4791b8e328c1cdbf852de54d
[INFO] checking garyemerson/du-view against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaryemerson%2Fdu-view" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/garyemerson/du-view on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/garyemerson/du-view
[INFO] finished tweaking git repo https://github.com/garyemerson/du-view
[INFO] tweaked toml for git repo https://github.com/garyemerson/du-view written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/garyemerson/du-view 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f04d9f149fc02ee1589483e02e73217e7c99461ce51e9456f6b55163e996af2
[INFO] running `Command { std: "docker" "start" "-a" "6f04d9f149fc02ee1589483e02e73217e7c99461ce51e9456f6b55163e996af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f04d9f149fc02ee1589483e02e73217e7c99461ce51e9456f6b55163e996af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f04d9f149fc02ee1589483e02e73217e7c99461ce51e9456f6b55163e996af2", kill_on_drop: false }`
[INFO] [stdout] 6f04d9f149fc02ee1589483e02e73217e7c99461ce51e9456f6b55163e996af2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b0decd411a276ea438ef7d5c9428ddd61bda3a8d2262a8d8c4ab002bd6417d7
[INFO] running `Command { std: "docker" "start" "-a" "1b0decd411a276ea438ef7d5c9428ddd61bda3a8d2262a8d8c4ab002bd6417d7", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]     Checking du-view v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/main.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &cap[2].trim_right_matches(|c| c == '/' || c == '\\')
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &cap[2].trim_end_matches(|c| c == '/' || c == '\\')
[INFO] [stdout]    |                         ~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/main.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &cap[2].trim_right_matches(|c| c == '/' || c == '\\')
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &cap[2].trim_end_matches(|c| c == '/' || c == '\\')
[INFO] [stdout]    |                         ~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut count = 0;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_count` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut count = 0;
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_count` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `Command { std: "docker" "inspect" "1b0decd411a276ea438ef7d5c9428ddd61bda3a8d2262a8d8c4ab002bd6417d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b0decd411a276ea438ef7d5c9428ddd61bda3a8d2262a8d8c4ab002bd6417d7", kill_on_drop: false }`
[INFO] [stdout] 1b0decd411a276ea438ef7d5c9428ddd61bda3a8d2262a8d8c4ab002bd6417d7