[INFO] cloning repository https://github.com/ng3rdstmadgke/mtools
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ng3rdstmadgke/mtools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fng3rdstmadgke%2Fmtools"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fng3rdstmadgke%2Fmtools'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2cc196a80a97dc89a2d17a355e2585e026330272
[INFO] checking ng3rdstmadgke/mtools against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fng3rdstmadgke%2Fmtools" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ng3rdstmadgke/mtools on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ng3rdstmadgke/mtools
[INFO] finished tweaking git repo https://github.com/ng3rdstmadgke/mtools
[INFO] tweaked toml for git repo https://github.com/ng3rdstmadgke/mtools written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ng3rdstmadgke/mtools already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7e19bdb1e625ce502c49177a6453162afbbcec09a5f4a86ed9e62554dbcebcb
[INFO] running `"docker" "start" "-a" "e7e19bdb1e625ce502c49177a6453162afbbcec09a5f4a86ed9e62554dbcebcb"`
[INFO] [stderr]     Checking mtools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/mcut.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut reader: BufReader<Box<Read>> = if let Some(file) = options.get("file") {
[INFO] [stderr]    |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/mcut.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut reader: BufReader<Box<Read>> = if let Some(file) = options.get("file") {
[INFO] [stderr]    |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `"docker" "inspect" "e7e19bdb1e625ce502c49177a6453162afbbcec09a5f4a86ed9e62554dbcebcb"`
[INFO] running `"docker" "rm" "-f" "e7e19bdb1e625ce502c49177a6453162afbbcec09a5f4a86ed9e62554dbcebcb"`
[INFO] [stdout] e7e19bdb1e625ce502c49177a6453162afbbcec09a5f4a86ed9e62554dbcebcb