[INFO] crate backlight 0.1.1 is already in cache
[INFO] checking backlight-0.1.1 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate backlight 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate backlight 0.1.1 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backlight 0.1.1
[INFO] finished tweaking crates.io crate backlight 0.1.1
[INFO] tweaked toml for crates.io crate backlight 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc48fd8d76abedaae6a13252ee4f0c87f13acafbab7ae92313ba4bc52fb14b16
[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" "fc48fd8d76abedaae6a13252ee4f0c87f13acafbab7ae92313ba4bc52fb14b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc48fd8d76abedaae6a13252ee4f0c87f13acafbab7ae92313ba4bc52fb14b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc48fd8d76abedaae6a13252ee4f0c87f13acafbab7ae92313ba4bc52fb14b16", kill_on_drop: false }`
[INFO] [stdout] fc48fd8d76abedaae6a13252ee4f0c87f13acafbab7ae92313ba4bc52fb14b16
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f4237570d9cec2ec324a740f9d00be494c174b3caddb4e07f0f61fa200778c6
[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" "8f4237570d9cec2ec324a740f9d00be494c174b3caddb4e07f0f61fa200778c6", kill_on_drop: false }`
[INFO] [stderr]     Checking backlight v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut file = try!(File::open(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!(file.read_to_string(&mut content));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let max = try!(self.get_max_brightness());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:56:24
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut file = try!(OpenOptions::new().write(true).open(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let value = try!(self.get_brightness()) as f32;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let max = try!(self.get_max_brightness()) as f32;
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:83:19
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let max = try!(self.get_max_brightness());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::default::Default`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:29:24
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let mut file = try!(File::open(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!(file.read_to_string(&mut content));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let max = try!(self.get_max_brightness());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:56:24
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut file = try!(OpenOptions::new().write(true).open(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let value = try!(self.get_brightness()) as f32;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let max = try!(self.get_max_brightness()) as f32;
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:83:19
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let max = try!(self.get_max_brightness());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::default::Default`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "8f4237570d9cec2ec324a740f9d00be494c174b3caddb4e07f0f61fa200778c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4237570d9cec2ec324a740f9d00be494c174b3caddb4e07f0f61fa200778c6", kill_on_drop: false }`
[INFO] [stdout] 8f4237570d9cec2ec324a740f9d00be494c174b3caddb4e07f0f61fa200778c6