[INFO] cloning repository https://github.com/thesunRider/stegsize
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thesunRider/stegsize" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FthesunRider%2Fstegsize", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FthesunRider%2Fstegsize'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33f32325369f41fd5e82c720b50205e97d0a346b
[INFO] checking thesunRider/stegsize against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FthesunRider%2Fstegsize" "/workspace/builds/worker-98/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-98/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thesunRider/stegsize on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thesunRider/stegsize
[INFO] finished tweaking git repo https://github.com/thesunRider/stegsize
[INFO] tweaked toml for git repo https://github.com/thesunRider/stegsize written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] crate git repo https://github.com/thesunRider/stegsize already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fba2649de6e3fa2fe9ce483fef9a1d800ebcdb864a7bf58ef6b080f55975025b
[INFO] running `Command { std: "docker" "start" "-a" "fba2649de6e3fa2fe9ce483fef9a1d800ebcdb864a7bf58ef6b080f55975025b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fba2649de6e3fa2fe9ce483fef9a1d800ebcdb864a7bf58ef6b080f55975025b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba2649de6e3fa2fe9ce483fef9a1d800ebcdb864a7bf58ef6b080f55975025b", kill_on_drop: false }`
[INFO] [stdout] fba2649de6e3fa2fe9ce483fef9a1d800ebcdb864a7bf58ef6b080f55975025b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a2fb9288b4c09615ae093a5b4d2b372c751ee8b84412b38ccf75fb8ee60fbf3
[INFO] running `Command { std: "docker" "start" "-a" "3a2fb9288b4c09615ae093a5b4d2b372c751ee8b84412b38ccf75fb8ee60fbf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking stegsize v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/main.rs:35:34
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn write_file(key:&str ,val:&str,matches:&clap::ArgMatches){
[INFO] [stdout]    |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matches`
[INFO] [stdout]   --> src/main.rs:35:34
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn write_file(key:&str ,val:&str,matches:&clap::ArgMatches){
[INFO] [stdout]    |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.96s
[INFO] running `Command { std: "docker" "inspect" "3a2fb9288b4c09615ae093a5b4d2b372c751ee8b84412b38ccf75fb8ee60fbf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a2fb9288b4c09615ae093a5b4d2b372c751ee8b84412b38ccf75fb8ee60fbf3", kill_on_drop: false }`
[INFO] [stdout] 3a2fb9288b4c09615ae093a5b4d2b372c751ee8b84412b38ccf75fb8ee60fbf3