[INFO] cloning repository https://github.com/pierrechevalier83/bongo_light
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pierrechevalier83/bongo_light" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierrechevalier83%2Fbongo_light", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierrechevalier83%2Fbongo_light'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e1ed9ca0722a0f418f7a68fb23d68516cb75666
[INFO] checking pierrechevalier83/bongo_light against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierrechevalier83%2Fbongo_light" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pierrechevalier83/bongo_light on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pierrechevalier83/bongo_light
[INFO] finished tweaking git repo https://github.com/pierrechevalier83/bongo_light
[INFO] tweaked toml for git repo https://github.com/pierrechevalier83/bongo_light written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/pierrechevalier83/bongo_light already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d96bcc4c04fc86bbff058188ac70c36ae9d26f05fbb59de980afc662eac20a2
[INFO] running `Command { std: "docker" "start" "-a" "6d96bcc4c04fc86bbff058188ac70c36ae9d26f05fbb59de980afc662eac20a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d96bcc4c04fc86bbff058188ac70c36ae9d26f05fbb59de980afc662eac20a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d96bcc4c04fc86bbff058188ac70c36ae9d26f05fbb59de980afc662eac20a2", kill_on_drop: false }`
[INFO] [stdout] 6d96bcc4c04fc86bbff058188ac70c36ae9d26f05fbb59de980afc662eac20a2
[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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a45559a7eed22492d5abe1e526260ae23598d1c71475e09935c6072a5ff9dda
[INFO] running `Command { std: "docker" "start" "-a" "3a45559a7eed22492d5abe1e526260ae23598d1c71475e09935c6072a5ff9dda", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde_derive v1.0.113
[INFO] [stderr]    Compiling serde v1.0.113
[INFO] [stderr]     Checking piston-graphics_api_version v0.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking shader_version v0.6.0
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking png v0.16.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.4
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.6
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking piston2d-graphics v0.36.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]     Checking jpeg-decoder v0.1.19
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking image v0.23.5
[INFO] [stderr]     Checking piston-gfx_texture v0.41.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.68.0
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking pistoncore-input v0.28.1
[INFO] [stderr]     Checking pistoncore-window v0.45.0
[INFO] [stderr]     Checking pistoncore-window v0.44.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.50.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.49.0
[INFO] [stderr]     Checking piston v0.49.0
[INFO] [stderr]     Checking piston v0.50.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]     Checking pistoncore-glutin_window v0.64.0
[INFO] [stderr]     Checking piston_window v0.109.0
[INFO] [stderr]     Checking bongo_light v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> src/oled.rs:21:18
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 .intersperse("\n".to_string())
[INFO] [stdout]    |                  ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 8  ~             Iterator::intersperse((0..8)
[INFO] [stdout] 9  +                 .rev()
[INFO] [stdout] 10 +                 .map(|bit_index| {
[INFO] [stdout] 11 +                     let pixels = bytes.iter().map(|byte| {
[INFO] [stdout] 12 +                         let bits = format!("{:08b}", byte);
[INFO] [stdout] 13 +                         match bits.chars().nth(bit_index) {
[INFO] [stdout]  ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 8  ~             itertools::Itertools::intersperse((0..8)
[INFO] [stdout] 9  +                 .rev()
[INFO] [stdout] 10 +                 .map(|bit_index| {
[INFO] [stdout] 11 +                     let pixels = bytes.iter().map(|byte| {
[INFO] [stdout] 12 +                         let bits = format!("{:08b}", byte);
[INFO] [stdout] 13 +                         match bits.chars().nth(bit_index) {
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools`
[INFO] [stdout]  --> src/oled.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bongo_light` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> src/oled.rs:21:18
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 .intersperse("\n".to_string())
[INFO] [stdout]    |                  ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 8  ~             Iterator::intersperse((0..8)
[INFO] [stdout] 9  +                 .rev()
[INFO] [stdout] 10 +                 .map(|bit_index| {
[INFO] [stdout] 11 +                     let pixels = bytes.iter().map(|byte| {
[INFO] [stdout] 12 +                         let bits = format!("{:08b}", byte);
[INFO] [stdout] 13 +                         match bits.chars().nth(bit_index) {
[INFO] [stdout]  ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 8  ~             itertools::Itertools::intersperse((0..8)
[INFO] [stdout] 9  +                 .rev()
[INFO] [stdout] 10 +                 .map(|bit_index| {
[INFO] [stdout] 11 +                     let pixels = bytes.iter().map(|byte| {
[INFO] [stdout] 12 +                         let bits = format!("{:08b}", byte);
[INFO] [stdout] 13 +                         match bits.chars().nth(bit_index) {
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools`
[INFO] [stdout]  --> src/oled.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3a45559a7eed22492d5abe1e526260ae23598d1c71475e09935c6072a5ff9dda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a45559a7eed22492d5abe1e526260ae23598d1c71475e09935c6072a5ff9dda", kill_on_drop: false }`
[INFO] [stdout] 3a45559a7eed22492d5abe1e526260ae23598d1c71475e09935c6072a5ff9dda