[INFO] fetching crate rust_dos_header 0.1.1...
[INFO] testing rust_dos_header-0.1.1 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate rust_dos_header 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rust_dos_header 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rust_dos_header 0.1.1
[INFO] tweaked toml for crates.io crate rust_dos_header 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_dos_header 0.1.1 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_dos_header 0.1.1 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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddb33a392c5e31c3ae0f88a9333eb4389543a2979e8ea81fd73a4dfe91c4fd6d
[INFO] running `Command { std: "docker" "start" "-a" "ddb33a392c5e31c3ae0f88a9333eb4389543a2979e8ea81fd73a4dfe91c4fd6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddb33a392c5e31c3ae0f88a9333eb4389543a2979e8ea81fd73a4dfe91c4fd6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddb33a392c5e31c3ae0f88a9333eb4389543a2979e8ea81fd73a4dfe91c4fd6d", kill_on_drop: false }`
[INFO] [stdout] ddb33a392c5e31c3ae0f88a9333eb4389543a2979e8ea81fd73a4dfe91c4fd6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9c9c6bab175fe49323cf4f6c2d7124de22c1fc9e9b88b2d8e38412c745dbe61
[INFO] running `Command { std: "docker" "start" "-a" "b9c9c6bab175fe49323cf4f6c2d7124de22c1fc9e9b88b2d8e38412c745dbe61", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_dos_header v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dos/decode.rs:58:20
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn decode_file(mut files: &File) -> Result<structs::DosHeader, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                    ----^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dos/decode.rs:119:35
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn read_move_vec_u18_list_by_file(mut files: &File, len: usize) -> Vec<u16> {
[INFO] [stdout]     |                                   ----^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "b9c9c6bab175fe49323cf4f6c2d7124de22c1fc9e9b88b2d8e38412c745dbe61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9c9c6bab175fe49323cf4f6c2d7124de22c1fc9e9b88b2d8e38412c745dbe61", kill_on_drop: false }`
[INFO] [stdout] b9c9c6bab175fe49323cf4f6c2d7124de22c1fc9e9b88b2d8e38412c745dbe61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf0753798babcbecaf715a46a2925d2a9b82c61bf1d93e7844caabafdfd22107
[INFO] running `Command { std: "docker" "start" "-a" "bf0753798babcbecaf715a46a2925d2a9b82c61bf1d93e7844caabafdfd22107", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_dos_header v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/dos/decode.rs:58:20
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn decode_file(mut files: &File) -> Result<structs::DosHeader, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                    ----^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dos/decode.rs:119:35
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn read_move_vec_u18_list_by_file(mut files: &File, len: usize) -> Vec<u16> {
[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/dos/decode.rs:58:20
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn decode_file(mut files: &File) -> Result<structs::DosHeader, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                    ----^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dos/decode.rs:119:35
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn read_move_vec_u18_list_by_file(mut files: &File, len: usize) -> Vec<u16> {
[INFO] [stdout]     |                                   ----^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> examples/decode_dos_header_stream.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::{Read, Seek}};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "bf0753798babcbecaf715a46a2925d2a9b82c61bf1d93e7844caabafdfd22107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf0753798babcbecaf715a46a2925d2a9b82c61bf1d93e7844caabafdfd22107", kill_on_drop: false }`
[INFO] [stdout] bf0753798babcbecaf715a46a2925d2a9b82c61bf1d93e7844caabafdfd22107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7ccc9b29c96dc5acb6c89a518decd4153af347e5907961ebc3f44e2f7b2ff0b
[INFO] running `Command { std: "docker" "start" "-a" "a7ccc9b29c96dc5acb6c89a518decd4153af347e5907961ebc3f44e2f7b2ff0b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/dos/decode.rs:58:20
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub fn decode_file(mut files: &File) -> Result<structs::DosHeader, Box<dyn std::error::Error>> {
[INFO] [stderr]    |                    ----^^^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/dos/decode.rs:119:35
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn read_move_vec_u18_list_by_file(mut files: &File, len: usize) -> Vec<u16> {
[INFO] [stderr]     |                                   ----^^^^^
[INFO] [stderr]     |                                   |
[INFO] [stderr]     |                                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_dos_header` (lib) generated 2 warnings (run `cargo fix --lib -p rust_dos_header` to apply 2 suggestions)
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> examples/decode_dos_header_stream.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fs::File, io::{Read, Seek}};
[INFO] [stderr]   |                          ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_dos_header` (example "decode_dos_header_stream") generated 1 warning (run `cargo fix --example "decode_dos_header_stream" -p rust_dos_header` to apply 1 suggestion)
[INFO] [stderr] warning: `rust_dos_header` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_dos_header-73c3025e251c6cdf)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_dos_header
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7ccc9b29c96dc5acb6c89a518decd4153af347e5907961ebc3f44e2f7b2ff0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ccc9b29c96dc5acb6c89a518decd4153af347e5907961ebc3f44e2f7b2ff0b", kill_on_drop: false }`
[INFO] [stdout] a7ccc9b29c96dc5acb6c89a518decd4153af347e5907961ebc3f44e2f7b2ff0b
