[INFO] cloning repository https://github.com/martinhath/jpeg-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martinhath/jpeg-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartinhath%2Fjpeg-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartinhath%2Fjpeg-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3a40cc4c31d5a46e36514cc2c6abc6f1a6caaa1
[INFO] checking martinhath/jpeg-rust against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartinhath%2Fjpeg-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/martinhath/jpeg-rust on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/martinhath/jpeg-rust
[INFO] finished tweaking git repo https://github.com/martinhath/jpeg-rust
[INFO] tweaked toml for git repo https://github.com/martinhath/jpeg-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/martinhath/jpeg-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 110db052eaef413fca5f61dd68f1e30b07a6711c9b6925b531261f8396d18afa
[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" "110db052eaef413fca5f61dd68f1e30b07a6711c9b6925b531261f8396d18afa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "110db052eaef413fca5f61dd68f1e30b07a6711c9b6925b531261f8396d18afa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110db052eaef413fca5f61dd68f1e30b07a6711c9b6925b531261f8396d18afa", kill_on_drop: false }`
[INFO] [stdout] 110db052eaef413fca5f61dd68f1e30b07a6711c9b6925b531261f8396d18afa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54965f4267eb665432880efaa749a2ae1983e31e5cca4d4f24da74dc8b585141
[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" "54965f4267eb665432880efaa749a2ae1983e31e5cca4d4f24da74dc8b585141", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking jpeg-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(file.read_to_end(&mut bytes));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/jpeg/decoder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try!(file.read_to_end(&mut bytes));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/jpeg/decoder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/jpeg/mod.rs:421:25
[INFO] [stdout]     |
[INFO] [stdout] 417 |                         return Ok(image);
[INFO] [stdout]     |                         ---------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 421 |                         i += bytes_read + bytes_skipped;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/jpeg/mod.rs:421:25
[INFO] [stdout]     |
[INFO] [stdout] 417 |                         return Ok(image);
[INFO] [stdout]     |                         ---------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 421 |                         i += bytes_read + bytes_skipped;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chunks_lazy` found for struct `FlatMap<std::slice::Iter<'_, f32>, std::iter::Take<std::iter::Repeat<&f32>>, [closure@src/jpeg/decoder.rs:356:23: 356:50 x_scale:_]>` in the current scope
[INFO] [stdout]    --> src/jpeg/decoder.rs:357:14
[INFO] [stdout]     |
[INFO] [stdout] 357 |             .chunks_lazy(8 * x_scale)
[INFO] [stdout]     |              ^^^^^^^^^^^ method not found in `FlatMap<std::slice::Iter<'_, f32>, std::iter::Take<std::iter::Repeat<&f32>>, [closure@src/jpeg/decoder.rs:356:23: 356:50 x_scale:_]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chunks_lazy` found for struct `FlatMap<std::slice::Iter<'_, f32>, std::iter::Take<std::iter::Repeat<&f32>>, [closure@src/jpeg/decoder.rs:356:23: 356:50 x_scale:_]>` in the current scope
[INFO] [stdout]    --> src/jpeg/decoder.rs:357:14
[INFO] [stdout]     |
[INFO] [stdout] 357 |             .chunks_lazy(8 * x_scale)
[INFO] [stdout]     |              ^^^^^^^^^^^ method not found in `FlatMap<std::slice::Iter<'_, f32>, std::iter::Take<std::iter::Repeat<&f32>>, [closure@src/jpeg/decoder.rs:356:23: 356:50 x_scale:_]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jpeg-rust`.
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "54965f4267eb665432880efaa749a2ae1983e31e5cca4d4f24da74dc8b585141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54965f4267eb665432880efaa749a2ae1983e31e5cca4d4f24da74dc8b585141", kill_on_drop: false }`
[INFO] [stdout] 54965f4267eb665432880efaa749a2ae1983e31e5cca4d4f24da74dc8b585141
