[INFO] cloning repository https://github.com/aaarland/rust-in-action
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aaarland/rust-in-action" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaarland%2Frust-in-action", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaarland%2Frust-in-action'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bc28e6e00ec7b24d01c2fe9b713bdc3dcc8bf73
[INFO] checking aaarland/rust-in-action/4bc28e6e00ec7b24d01c2fe9b713bdc3dcc8bf73 against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaarland%2Frust-in-action" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aaarland/rust-in-action
[INFO] finished tweaking git repo https://github.com/aaarland/rust-in-action
[INFO] tweaked toml for git repo https://github.com/aaarland/rust-in-action written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aaarland/rust-in-action on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aaarland/rust-in-action 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f
[INFO] running `Command { std: "docker" "start" "9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking bit_field v0.10.2
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[INFO] [stderr]     Checking mandlebrot v0.1.0 (/opt/rustwide/workdir/mandlebrot)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> mandlebrot/src/main.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |       let x_percent = (img_x as f64 / width as f64);
[INFO] [stdout]    |                       ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 20 -       let x_percent = (img_x as f64 / width as f64);
[INFO] [stdout] 20 +       let x_percent = img_x as f64 / width as f64;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> mandlebrot/src/main.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |       let y_percent = (img_y as f64 / height as f64);
[INFO] [stdout]    |                       ^                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -       let y_percent = (img_y as f64 / height as f64);
[INFO] [stdout] 21 +       let y_percent = img_y as f64 / height as f64;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> mandlebrot/src/main.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |       let x_percent = (img_x as f64 / width as f64);
[INFO] [stdout]    |                       ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 20 -       let x_percent = (img_x as f64 / width as f64);
[INFO] [stdout] 20 +       let x_percent = img_x as f64 / width as f64;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> mandlebrot/src/main.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |       let y_percent = (img_y as f64 / height as f64);
[INFO] [stdout]    |                       ^                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -       let y_percent = (img_y as f64 / height as f64);
[INFO] [stdout] 21 +       let y_percent = img_y as f64 / height as f64;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking resolve v0.1.0 (/opt/rustwide/workdir/resolve)
[INFO] [stderr]     Checking rpg v0.1.0 (/opt/rustwide/workdir/rpg)
[INFO] [stderr]     Checking clock v0.1.0 (/opt/rustwide/workdir/clock)
[INFO] [stdout] warning: use of deprecated method `chrono::TimeZone::timestamp`: use `timestamp_opt()` instead
[INFO] [stdout]   --> clock/src/main.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         Utc.timestamp(secs, nanos as u32)
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking render-hex v0.1.0 (/opt/rustwide/workdir/render-hex)
[INFO] [stdout] warning: unused import: `svg::node::element::tag::Ellipse`
[INFO] [stdout]  --> render-hex/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use svg::node::element::tag::Ellipse;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cpu v0.1.0 (/opt/rustwide/workdir/cpu)
[INFO] [stdout] warning: use of deprecated method `chrono::TimeZone::timestamp`: use `timestamp_opt()` instead
[INFO] [stdout]   --> clock/src/main.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         Utc.timestamp(secs, nanos as u32)
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `svg::node::element::tag::Ellipse`
[INFO] [stdout]  --> render-hex/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use svg::node::element::tag::Ellipse;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TurnRight` is never constructed
[INFO] [stdout]   --> render-hex/src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Operation {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 36 |     TurnRight,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operation` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TurnRight` is never constructed
[INFO] [stdout]   --> render-hex/src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Operation {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 36 |     TurnRight,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operation` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking fview v0.1.0 (/opt/rustwide/workdir/fview)
[INFO] [stderr]     Checking threads v0.1.0 (/opt/rustwide/workdir/threads)
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> threads/src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             handle.join();
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 25 |             let _ = handle.join();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> threads/src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             handle.join();
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let _ = handle.join();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> threads/src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             handle.join();
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 25 |             let _ = handle.join();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> threads/src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             handle.join();
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let _ = handle.join();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking fledgeos v0.1.0 (/opt/rustwide/workdir/fledgeos)
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> fledgeos/src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> fledgeos/src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(core_intrinsics)] // <2>
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::intrinsics`
[INFO] [stdout]  --> fledgeos/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::intrinsics; // <2>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `x86_64::instructions::hlt`
[INFO] [stdout]  --> fledgeos/src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use x86_64::instructions::hlt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[no_mangle]` cannot be used on internal language items
[INFO] [stdout]   --> fledgeos/src/main.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[unsafe(no_mangle)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 | pub fn panic(info: &PanicInfo) -> ! {
[INFO] [stdout]    | ----------------------------------- should be the internal language item
[INFO] [stdout]    |
[INFO] [stdout]    = note: Rustc requires this item to have a specific mangled name.
[INFO] [stdout]    = note: If you are trying to prevent mangling to ease debugging, many
[INFO] [stdout]    = note: debuggers support a command such as `rbreak rust_begin_unwind` to
[INFO] [stdout]    = note: match `.*rust_begin_unwind.*` instead of `break rust_begin_unwind` on a specific name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[no_mangle]` cannot be used on internal language items
[INFO] [stdout]   --> fledgeos/src/main.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #[unsafe(no_mangle)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 82 | pub extern "C" fn eh_personality() {}
[INFO] [stdout]    | ---------------------------------- should be the internal language item
[INFO] [stdout]    |
[INFO] [stdout]    = note: Rustc requires this item to have a specific mangled name.
[INFO] [stdout]    = note: If you are trying to prevent mangling to ease debugging, many
[INFO] [stdout]    = note: debuggers support a command such as `rbreak rust_eh_personality` to
[INFO] [stdout]    = note: match `.*rust_eh_personality.*` instead of `break rust_eh_personality` on a specific name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fledgeos` (bin "fledgeos") due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> fledgeos/src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> fledgeos/src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(core_intrinsics)] // <2>
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::intrinsics`
[INFO] [stdout]  --> fledgeos/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::intrinsics; // <2>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `x86_64::instructions::hlt`
[INFO] [stdout]  --> fledgeos/src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use x86_64::instructions::hlt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> fledgeos/src/main.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | / pub fn panic(info: &PanicInfo) -> ! {
[INFO] [stdout] 68 | |     let mut cursor = Cursor {
[INFO] [stdout] 69 | |         position: 0,
[INFO] [stdout] 70 | |         foreground: Color::White,
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | |     loop {}
[INFO] [stdout] 79 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/4eb62535fc12dd1a63fd43a4173e224e79313c4d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-ebc3593764c44f83.rmeta
[INFO] [stdout]    = note: second definition in the local crate (`fledgeos`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fledgeos` (bin "fledgeos" test) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f", kill_on_drop: false }`
[INFO] [stdout] 9d3fd623cd4dfdcff743c7a02dae9ca5ddd219cbb2b0d91d36d48534c787711f
