[INFO] cloning repository https://github.com/edbaskerville/cargo-ubuild
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/edbaskerville/cargo-ubuild" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedbaskerville%2Fcargo-ubuild", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedbaskerville%2Fcargo-ubuild'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d9169cf6290fcf523a59603491e7ce0745501fb
[INFO] checking edbaskerville/cargo-ubuild against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedbaskerville%2Fcargo-ubuild" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/edbaskerville/cargo-ubuild on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/edbaskerville/cargo-ubuild
[INFO] finished tweaking git repo https://github.com/edbaskerville/cargo-ubuild
[INFO] tweaked toml for git repo https://github.com/edbaskerville/cargo-ubuild written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/edbaskerville/cargo-ubuild 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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 strip-ansi-escapes v0.1.0
[INFO] [stderr]   Downloaded utf8parse v0.1.0
[INFO] [stderr]   Downloaded vte v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b004d6fcd44ae9bd1840fbed1397a0f50e9406b7b5325424deb2a64ac46f4ee
[INFO] running `Command { std: "docker" "start" "-a" "5b004d6fcd44ae9bd1840fbed1397a0f50e9406b7b5325424deb2a64ac46f4ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b004d6fcd44ae9bd1840fbed1397a0f50e9406b7b5325424deb2a64ac46f4ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b004d6fcd44ae9bd1840fbed1397a0f50e9406b7b5325424deb2a64ac46f4ee", kill_on_drop: false }`
[INFO] [stdout] 5b004d6fcd44ae9bd1840fbed1397a0f50e9406b7b5325424deb2a64ac46f4ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b34539f2184c63c946cfba11bcce24e9efe00a0b40af861916d6ade5ae41a67f
[INFO] running `Command { std: "docker" "start" "-a" "b34539f2184c63c946cfba11bcce24e9efe00a0b40af861916d6ade5ae41a67f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Write, BufRead, BufReader};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Write, BufRead, BufReader};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let mut reader = BufReader::new(stderr);
[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:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let mut reader = BufReader::new(stderr);
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "b34539f2184c63c946cfba11bcce24e9efe00a0b40af861916d6ade5ae41a67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b34539f2184c63c946cfba11bcce24e9efe00a0b40af861916d6ade5ae41a67f", kill_on_drop: false }`
[INFO] [stdout] b34539f2184c63c946cfba11bcce24e9efe00a0b40af861916d6ade5ae41a67f
[INFO] checking edbaskerville/cargo-ubuild against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedbaskerville%2Fcargo-ubuild" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/edbaskerville/cargo-ubuild on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/edbaskerville/cargo-ubuild
[INFO] finished tweaking git repo https://github.com/edbaskerville/cargo-ubuild
[INFO] tweaked toml for git repo https://github.com/edbaskerville/cargo-ubuild written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/edbaskerville/cargo-ubuild 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db6b85a4de8c217400a57dc09ed37c55a1bcad8205cd573aa56f05c29a7d2833
[INFO] running `Command { std: "docker" "start" "-a" "db6b85a4de8c217400a57dc09ed37c55a1bcad8205cd573aa56f05c29a7d2833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db6b85a4de8c217400a57dc09ed37c55a1bcad8205cd573aa56f05c29a7d2833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db6b85a4de8c217400a57dc09ed37c55a1bcad8205cd573aa56f05c29a7d2833", kill_on_drop: false }`
[INFO] [stdout] db6b85a4de8c217400a57dc09ed37c55a1bcad8205cd573aa56f05c29a7d2833
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbfcf47b765e7458042163eb30c51196e1881bad1b99ddd1462783744e3bc1b3
[INFO] running `Command { std: "docker" "start" "-a" "fbfcf47b765e7458042163eb30c51196e1881bad1b99ddd1462783744e3bc1b3", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Write, BufRead, BufReader};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let mut reader = BufReader::new(stderr);
[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: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Write, BufRead, BufReader};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 let mut reader = BufReader::new(stderr);
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "fbfcf47b765e7458042163eb30c51196e1881bad1b99ddd1462783744e3bc1b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbfcf47b765e7458042163eb30c51196e1881bad1b99ddd1462783744e3bc1b3", kill_on_drop: false }`
[INFO] [stdout] fbfcf47b765e7458042163eb30c51196e1881bad1b99ddd1462783744e3bc1b3