[INFO] updating cached repository edbaskerville/cargo-ubuild
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/edbaskerville/cargo-ubuild
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/edbaskerville/cargo-ubuild" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/edbaskerville/cargo-ubuild"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/edbaskerville/cargo-ubuild'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/edbaskerville/cargo-ubuild" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/edbaskerville/cargo-ubuild"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/edbaskerville/cargo-ubuild'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9d9169cf6290fcf523a59603491e7ce0745501fb
[INFO] sha for GitHub repo edbaskerville/cargo-ubuild: 9d9169cf6290fcf523a59603491e7ce0745501fb
[INFO] validating manifest of edbaskerville/cargo-ubuild on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of edbaskerville/cargo-ubuild on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing edbaskerville/cargo-ubuild
[INFO] finished frobbing edbaskerville/cargo-ubuild
[INFO] frobbed toml for edbaskerville/cargo-ubuild written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/edbaskerville/cargo-ubuild/Cargo.toml
[INFO] started frobbing edbaskerville/cargo-ubuild
[INFO] finished frobbing edbaskerville/cargo-ubuild
[INFO] frobbed toml for edbaskerville/cargo-ubuild written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/edbaskerville/cargo-ubuild/Cargo.toml
[INFO] crate edbaskerville/cargo-ubuild already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking edbaskerville/cargo-ubuild against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-6/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/edbaskerville/cargo-ubuild:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bd099bc5fbea06a9e758a689b80cbf9573b2c71b01cf42c405474569938c36bd
[INFO] running `"docker" "start" "-a" "bd099bc5fbea06a9e758a689b80cbf9573b2c71b01cf42c405474569938c36bd"`
[INFO] [stderr]     Checking utf8parse v0.1.0
[INFO] [stderr]     Checking vte v0.3.2
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.0
[INFO] [stderr]     Checking cargo-ubuild v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/main.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Write, BufRead, BufReader};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/main.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Write, BufRead, BufReader};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:60:21
[INFO] [stderr]    |
[INFO] [stderr] 60 |                 let mut reader = BufReader::new(stderr);
[INFO] [stderr]    |                     ----^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:60:21
[INFO] [stderr]    |
[INFO] [stderr] 60 |                 let mut reader = BufReader::new(stderr);
[INFO] [stderr]    |                     ----^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `"docker" "inspect" "bd099bc5fbea06a9e758a689b80cbf9573b2c71b01cf42c405474569938c36bd"`
[INFO] running `"docker" "rm" "-f" "bd099bc5fbea06a9e758a689b80cbf9573b2c71b01cf42c405474569938c36bd"`
[INFO] [stdout] bd099bc5fbea06a9e758a689b80cbf9573b2c71b01cf42c405474569938c36bd