[INFO] fetching crate justify 0.1.3...
[INFO] testing justify-0.1.3 against 1.54.0 for beta-1.55-1
[INFO] extracting crate justify 0.1.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate justify 0.1.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate justify 0.1.3
[INFO] finished tweaking crates.io crate justify 0.1.3
[INFO] tweaked toml for crates.io crate justify 0.1.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate justify 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 0b8001824fd0ca9ca9cddf818cfb605ca16ae93a0e528f71d59c2be4867c5b34
[INFO] running `Command { std: "docker" "start" "-a" "0b8001824fd0ca9ca9cddf818cfb605ca16ae93a0e528f71d59c2be4867c5b34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b8001824fd0ca9ca9cddf818cfb605ca16ae93a0e528f71d59c2be4867c5b34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b8001824fd0ca9ca9cddf818cfb605ca16ae93a0e528f71d59c2be4867c5b34", kill_on_drop: false }`
[INFO] [stdout] 0b8001824fd0ca9ca9cddf818cfb605ca16ae93a0e528f71d59c2be4867c5b34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 426fe29ee160dfb7fae7cb847f8088492f9c623aca5eca42d4f0dbdc0a0ab9c4
[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" "426fe29ee160dfb7fae7cb847f8088492f9c623aca5eca42d4f0dbdc0a0ab9c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling justify v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let mut c;
[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/lib.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let mut size = line.iter().fold(0, |acc, &x| acc + x.len());
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "426fe29ee160dfb7fae7cb847f8088492f9c623aca5eca42d4f0dbdc0a0ab9c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "426fe29ee160dfb7fae7cb847f8088492f9c623aca5eca42d4f0dbdc0a0ab9c4", kill_on_drop: false }`
[INFO] [stdout] 426fe29ee160dfb7fae7cb847f8088492f9c623aca5eca42d4f0dbdc0a0ab9c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0eba5f65278cfb66e0e2b741d1e7537284a6bd21d4e913c5656516049b291c46
[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" "0eba5f65278cfb66e0e2b741d1e7537284a6bd21d4e913c5656516049b291c46", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let mut c;
[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] [stderr]    Compiling justify v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let mut size = line.iter().fold(0, |acc, &x| acc + x.len());
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let mut c;
[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/lib.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let mut size = line.iter().fold(0, |acc, &x| acc + x.len());
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "0eba5f65278cfb66e0e2b741d1e7537284a6bd21d4e913c5656516049b291c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eba5f65278cfb66e0e2b741d1e7537284a6bd21d4e913c5656516049b291c46", kill_on_drop: false }`
[INFO] [stdout] 0eba5f65278cfb66e0e2b741d1e7537284a6bd21d4e913c5656516049b291c46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f89e8a53a46ce01fe2e03ee4b7d9cea373b20b19ecab3d3f72680d3d8a1ce5a1
[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" "f89e8a53a46ce01fe2e03ee4b7d9cea373b20b19ecab3d3f72680d3d8a1ce5a1", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/lib.rs:132:13
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 132 |         let mut c;
[INFO] [stdout] 
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut size = line.iter().fold(0, |acc, &x| acc + x.len());
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let mut c;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let mut size = line.iter().fold(0, |acc, &x| acc + x.len());
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/justify-ee0c34e887ab5da3)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/justify-4ee910e53627e3f7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-ed3481046844165e)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test word_longer_than_width ... ok
[INFO] [stdout] test word_longer_than_width_hyphenate ... ok
[INFO] [stdout] test many_empty_lines_justify ... ok
[INFO] [stdout] test less_than_width ... ok
[INFO] [stdout] test one_line_justify ... ok
[INFO] [stdout] test justify_lipsum_right ... ok
[INFO] [stdout] test empty_string_justify ... ok
[INFO] [stdout] test multi_hyphenate ... ok
[INFO] [stdout] test long_text ... ok
[INFO] [stderr]    Doc-tests justify
[INFO] [stdout] test justify_paragraph_with_newline - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f89e8a53a46ce01fe2e03ee4b7d9cea373b20b19ecab3d3f72680d3d8a1ce5a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89e8a53a46ce01fe2e03ee4b7d9cea373b20b19ecab3d3f72680d3d8a1ce5a1", kill_on_drop: false }`
[INFO] [stdout] f89e8a53a46ce01fe2e03ee4b7d9cea373b20b19ecab3d3f72680d3d8a1ce5a1
