[INFO] cloning repository https://github.com/sajattack/uf2conv-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sajattack/uf2conv-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsajattack%2Fuf2conv-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsajattack%2Fuf2conv-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a35b803a271c3b3067aa13a66b52eed363f477f
[INFO] checking sajattack/uf2conv-rs against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsajattack%2Fuf2conv-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sajattack/uf2conv-rs on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sajattack/uf2conv-rs
[INFO] finished tweaking git repo https://github.com/sajattack/uf2conv-rs
[INFO] tweaked toml for git repo https://github.com/sajattack/uf2conv-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sajattack/uf2conv-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v1.2.0
[INFO] [stderr]   Downloaded unicode-width v0.1.6
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbb54eb76fc5d6395c33d26754257ac92a8bb1a2aba553eb1e059d6fb68e0c64
[INFO] running `Command { std: "docker" "start" "-a" "cbb54eb76fc5d6395c33d26754257ac92a8bb1a2aba553eb1e059d6fb68e0c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbb54eb76fc5d6395c33d26754257ac92a8bb1a2aba553eb1e059d6fb68e0c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb54eb76fc5d6395c33d26754257ac92a8bb1a2aba553eb1e059d6fb68e0c64", kill_on_drop: false }`
[INFO] [stdout] cbb54eb76fc5d6395c33d26754257ac92a8bb1a2aba553eb1e059d6fb68e0c64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 950be47c1f7557b027c14bbaeb457973549be504c65bd1c1b23057ef0f915cf9
[INFO] running `Command { std: "docker" "start" "-a" "950be47c1f7557b027c14bbaeb457973549be504c65bd1c1b23057ef0f915cf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking uf2 v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking uf2conv v0.1.0 (/opt/rustwide/workdir/bin)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> bin/src/main.rs:52:65
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Err(why) => panic!("couldn't open {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> bin/src/main.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> bin/src/main.rs:52:65
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Err(why) => panic!("couldn't open {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> bin/src/main.rs:67:67
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[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 [unoptimized + debuginfo] target(s) in 5.17s
[INFO] running `Command { std: "docker" "inspect" "950be47c1f7557b027c14bbaeb457973549be504c65bd1c1b23057ef0f915cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950be47c1f7557b027c14bbaeb457973549be504c65bd1c1b23057ef0f915cf9", kill_on_drop: false }`
[INFO] [stdout] 950be47c1f7557b027c14bbaeb457973549be504c65bd1c1b23057ef0f915cf9