[INFO] cloning repository https://github.com/wismer/rugit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wismer/rugit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frugit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frugit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcefcf74a34d8baed4fba1840e67f3918e36ad4e
[INFO] checking wismer/rugit against try#e90f1ff63e694965281f833819a486da29772bdf for pr-146167
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frugit" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wismer/rugit
[INFO] finished tweaking git repo https://github.com/wismer/rugit
[INFO] tweaked toml for git repo https://github.com/wismer/rugit written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wismer/rugit on toolchain e90f1ff63e694965281f833819a486da29772bdf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wismer/rugit 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" "+e90f1ff63e694965281f833819a486da29772bdf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded build_const v0.2.1
[INFO] [stderr]   Downloaded cc v1.0.37
[INFO] [stderr]   Downloaded miniz_oxide v0.2.1
[INFO] [stderr]   Downloaded miniz_oxide_c_api v0.2.1
[INFO] [stderr]   Downloaded miniz-sys v0.1.12
[INFO] [stderr]   Downloaded flate2 v1.0.7
[INFO] [stderr]   Downloaded libc v0.2.55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf2bf5709e41bfb3346c4fd21f6a592013220944021541bd3ab5e82602d4921c
[INFO] running `Command { std: "docker" "start" "-a" "cf2bf5709e41bfb3346c4fd21f6a592013220944021541bd3ab5e82602d4921c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf2bf5709e41bfb3346c4fd21f6a592013220944021541bd3ab5e82602d4921c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf2bf5709e41bfb3346c4fd21f6a592013220944021541bd3ab5e82602d4921c", kill_on_drop: false }`
[INFO] [stdout] cf2bf5709e41bfb3346c4fd21f6a592013220944021541bd3ab5e82602d4921c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8df5526c9cfe8f63c0d8626acb2c7808b32e6bd9ccd40ec50132fb2602693bd4
[INFO] running `Command { std: "docker" "start" "-a" "8df5526c9cfe8f63c0d8626acb2c7808b32e6bd9ccd40ec50132fb2602693bd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking rugit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/rugit/mod.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub struct Workspace {
[INFO] [stdout]    |                --------- field in this struct
[INFO] [stdout] 11 |         pub path: String
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `files` is never used
[INFO] [stdout]   --> src/rugit/mod.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |     impl Workspace {
[INFO] [stdout]    |     -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |         pub fn files(&self) -> std::io::Result<()> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/rugit/mod.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub struct Workspace {
[INFO] [stdout]    |                --------- field in this struct
[INFO] [stdout] 11 |         pub path: String
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `files` is never used
[INFO] [stdout]   --> src/rugit/mod.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |     impl Workspace {
[INFO] [stdout]    |     -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |         pub fn files(&self) -> std::io::Result<()> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "8df5526c9cfe8f63c0d8626acb2c7808b32e6bd9ccd40ec50132fb2602693bd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8df5526c9cfe8f63c0d8626acb2c7808b32e6bd9ccd40ec50132fb2602693bd4", kill_on_drop: false }`
[INFO] [stdout] 8df5526c9cfe8f63c0d8626acb2c7808b32e6bd9ccd40ec50132fb2602693bd4