[INFO] fetching crate bmp-rust 0.4.1...
[INFO] checking bmp-rust-0.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate bmp-rust 0.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bmp-rust 0.4.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bmp-rust 0.4.1
[INFO] finished tweaking crates.io crate bmp-rust 0.4.1
[INFO] tweaked toml for crates.io crate bmp-rust 0.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 094f9ac9b3dfeece9776e47de0c9a56bdb642d87c2499cb8a8b641791df8e837
[INFO] running `Command { std: "docker" "start" "-a" "094f9ac9b3dfeece9776e47de0c9a56bdb642d87c2499cb8a8b641791df8e837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "094f9ac9b3dfeece9776e47de0c9a56bdb642d87c2499cb8a8b641791df8e837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "094f9ac9b3dfeece9776e47de0c9a56bdb642d87c2499cb8a8b641791df8e837", kill_on_drop: false }`
[INFO] [stdout] 094f9ac9b3dfeece9776e47de0c9a56bdb642d87c2499cb8a8b641791df8e837
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 325ed0aed0fc97e1f8f36206261f53a13fb95ddce03aa0be7a88eecb015e34d8
[INFO] running `Command { std: "docker" "start" "-a" "325ed0aed0fc97e1f8f36206261f53a13fb95ddce03aa0be7a88eecb015e34d8", kill_on_drop: false }`
[INFO] [stderr]     Checking bmp-rust v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/bmp.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/bmp.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EXTRA_BIT_MASKS` is never used
[INFO] [stdout]    --> src/bmp.rs:352:6
[INFO] [stdout]     |
[INFO] [stdout] 352 | enum EXTRA_BIT_MASKS {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `vec_to_1u8_array`, `get_extra_bit_masks`, and `get_color_profile` are never used
[INFO] [stdout]     --> src/bmp.rs:494:6
[INFO] [stdout]      |
[INFO] [stdout] 382  | impl BMP {
[INFO] [stdout]      | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 494  |   fn vec_to_1u8_array(vector: Vec<u8>) -> [u8; 1] {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 941  |   fn get_extra_bit_masks(&self) -> Result<EXTRA_BIT_MASKS, ErrorKind> {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1135 |   fn get_color_profile(&self) -> Result<Vec<u8>, ErrorKind> {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EXTRA_BIT_MASKS` is never used
[INFO] [stdout]    --> src/bmp.rs:352:6
[INFO] [stdout]     |
[INFO] [stdout] 352 | enum EXTRA_BIT_MASKS {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `vec_to_1u8_array`, `get_extra_bit_masks`, and `get_color_profile` are never used
[INFO] [stdout]     --> src/bmp.rs:494:6
[INFO] [stdout]      |
[INFO] [stdout] 382  | impl BMP {
[INFO] [stdout]      | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 494  |   fn vec_to_1u8_array(vector: Vec<u8>) -> [u8; 1] {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 941  |   fn get_extra_bit_masks(&self) -> Result<EXTRA_BIT_MASKS, ErrorKind> {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1135 |   fn get_color_profile(&self) -> Result<Vec<u8>, ErrorKind> {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "325ed0aed0fc97e1f8f36206261f53a13fb95ddce03aa0be7a88eecb015e34d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "325ed0aed0fc97e1f8f36206261f53a13fb95ddce03aa0be7a88eecb015e34d8", kill_on_drop: false }`
[INFO] [stdout] 325ed0aed0fc97e1f8f36206261f53a13fb95ddce03aa0be7a88eecb015e34d8