[INFO] cloning repository https://github.com/emilio/nn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emilio/nn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e8cda885b450db2983bd4b503ff00a19cba5dce0 [INFO] checking emilio/nn against master#05eac57ef6668c9d181b65aceb96b1e7881f60be for pr-127656 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emilio/nn on toolchain 05eac57ef6668c9d181b65aceb96b1e7881f60be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/emilio/nn [INFO] finished tweaking git repo https://github.com/emilio/nn [INFO] tweaked toml for git repo https://github.com/emilio/nn written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/emilio/nn 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" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded atty v0.2.2 [INFO] [stderr] Downloaded term_size v0.3.0 [INFO] [stderr] Downloaded gcc v0.3.49 [INFO] [stderr] Downloaded bitflags v0.8.2 [INFO] [stderr] Downloaded cmake v0.1.24 [INFO] [stderr] Downloaded unicode-segmentation v1.2.0 [INFO] [stderr] Downloaded clap v2.24.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6c330abd8b682f0dcdb8f0e72acbd73a788088aea900ae7d975507f5ff1b508a [INFO] running `Command { std: "docker" "start" "-a" "6c330abd8b682f0dcdb8f0e72acbd73a788088aea900ae7d975507f5ff1b508a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6c330abd8b682f0dcdb8f0e72acbd73a788088aea900ae7d975507f5ff1b508a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c330abd8b682f0dcdb8f0e72acbd73a788088aea900ae7d975507f5ff1b508a", kill_on_drop: false }` [INFO] [stdout] 6c330abd8b682f0dcdb8f0e72acbd73a788088aea900ae7d975507f5ff1b508a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 498db063dbbfaf8d8ac92c123a34419793c739bf63d6ff29d88886338fdc9876 [INFO] running `Command { std: "docker" "start" "-a" "498db063dbbfaf8d8ac92c123a34419793c739bf63d6ff29d88886338fdc9876", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking libc v0.2.21 [INFO] [stderr] Compiling gcc v0.3.49 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stderr] Checking strsim v0.6.0 [INFO] [stderr] Checking unicode-segmentation v1.2.0 [INFO] [stderr] Checking bitflags v0.8.2 [INFO] [stderr] Checking vec_map v0.8.0 [INFO] [stderr] Checking unicode-width v0.1.4 [INFO] [stderr] Compiling cmake v0.1.24 [INFO] [stderr] Checking term_size v0.3.0 [INFO] [stderr] Checking atty v0.2.2 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking clap v2.24.2 [INFO] [stderr] Compiling neural-networks-practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 215 | let (l, mut r) = self.layers.split_at_mut(i); [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/main.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 215 | let (l, mut r) = self.layers.split_at_mut(i); [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/main.rs:226:17 [INFO] [stdout] | [INFO] [stdout] 226 | let mut output_layer = self.layers.last_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:238:21 [INFO] [stdout] | [INFO] [stdout] 238 | let mut this_layer = match iter.next() { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:259:24 [INFO] [stdout] | [INFO] [stdout] 259 | while let Some(mut previous_layer) = next { [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:260:17 [INFO] [stdout] | [INFO] [stdout] 260 | let mut this_layer = match iter.next() { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:226:17 [INFO] [stdout] | [INFO] [stdout] 226 | let mut output_layer = self.layers.last_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:238:21 [INFO] [stdout] | [INFO] [stdout] 238 | let mut this_layer = match iter.next() { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:259:24 [INFO] [stdout] | [INFO] [stdout] 259 | while let Some(mut previous_layer) = next { [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:260:17 [INFO] [stdout] | [INFO] [stdout] 260 | let mut this_layer = match iter.next() { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `label`, `rows`, and `columns` are never read [INFO] [stdout] --> src/main.rs:414:5 [INFO] [stdout] | [INFO] [stdout] 411 | struct MNISTLabeledImage { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 414 | label: u8, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 415 | rows: usize, [INFO] [stdout] | ^^^^ [INFO] [stdout] 416 | columns: usize, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MNISTLabeledImage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `label`, `rows`, and `columns` are never read [INFO] [stdout] --> src/main.rs:414:5 [INFO] [stdout] | [INFO] [stdout] 411 | struct MNISTLabeledImage { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 414 | label: u8, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 415 | rows: usize, [INFO] [stdout] | ^^^^ [INFO] [stdout] 416 | columns: usize, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MNISTLabeledImage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.44s [INFO] running `Command { std: "docker" "inspect" "498db063dbbfaf8d8ac92c123a34419793c739bf63d6ff29d88886338fdc9876", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "498db063dbbfaf8d8ac92c123a34419793c739bf63d6ff29d88886338fdc9876", kill_on_drop: false }` [INFO] [stdout] 498db063dbbfaf8d8ac92c123a34419793c739bf63d6ff29d88886338fdc9876 [INFO] checking emilio/nn against try#0c9c19b42881b7ee3d3f268d2369726c7f8dddfd for pr-127656 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emilio/nn on toolchain 0c9c19b42881b7ee3d3f268d2369726c7f8dddfd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/emilio/nn [INFO] finished tweaking git repo https://github.com/emilio/nn [INFO] tweaked toml for git repo https://github.com/emilio/nn written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/emilio/nn 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" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4a48c18ce7228febd59f25744ae9972f859c5cbec3152ce12c98018e6deef723 [INFO] running `Command { std: "docker" "start" "-a" "4a48c18ce7228febd59f25744ae9972f859c5cbec3152ce12c98018e6deef723", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4a48c18ce7228febd59f25744ae9972f859c5cbec3152ce12c98018e6deef723", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a48c18ce7228febd59f25744ae9972f859c5cbec3152ce12c98018e6deef723", kill_on_drop: false }` [INFO] [stdout] 4a48c18ce7228febd59f25744ae9972f859c5cbec3152ce12c98018e6deef723 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 98bf6b67bf282deae47f2509c5216845d5137cdc73a2ec63c45ec315b9effb05 [INFO] running `Command { std: "docker" "start" "-a" "98bf6b67bf282deae47f2509c5216845d5137cdc73a2ec63c45ec315b9effb05", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking libc v0.2.21 [INFO] [stderr] Compiling gcc v0.3.49 [INFO] [stderr] Checking vec_map v0.8.0 [INFO] [stderr] Checking bitflags v0.8.2 [INFO] [stderr] Checking unicode-width v0.1.4 [INFO] [stderr] Checking strsim v0.6.0 [INFO] [stderr] Checking unicode-segmentation v1.2.0 [INFO] [stderr] Checking ansi_term v0.9.0 [INFO] [stdout] error[E0365]: extern crate `core` is private and cannot be re-exported [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bitflags-0.8.2/src/lib.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | pub use core as __core; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider making the `extern crate` item publicly accessible [INFO] [stdout] | [INFO] [stdout] 1 | pub // Copyright 2014 The Rust Project Developers. See the COPYRIGHT [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0365`. [INFO] [stdout] [INFO] [stderr] error: could not compile `bitflags` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "98bf6b67bf282deae47f2509c5216845d5137cdc73a2ec63c45ec315b9effb05", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98bf6b67bf282deae47f2509c5216845d5137cdc73a2ec63c45ec315b9effb05", kill_on_drop: false }` [INFO] [stdout] 98bf6b67bf282deae47f2509c5216845d5137cdc73a2ec63c45ec315b9effb05