[INFO] cloning repository https://github.com/schctl/mk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/schctl/mk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschctl%2Fmk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschctl%2Fmk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82d4fee3b3c1a4870b9a3c713d8a06427b40bff0
[INFO] checking schctl/mk against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschctl%2Fmk" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/schctl/mk on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/schctl/mk
[INFO] finished tweaking git repo https://github.com/schctl/mk
[INFO] tweaked toml for git repo https://github.com/schctl/mk written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/schctl/mk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcfbab4943b5da877da80671a05f120749f273d903a5a296fd4775f15a2a67c2
[INFO] running `Command { std: "docker" "start" "-a" "bcfbab4943b5da877da80671a05f120749f273d903a5a296fd4775f15a2a67c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcfbab4943b5da877da80671a05f120749f273d903a5a296fd4775f15a2a67c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcfbab4943b5da877da80671a05f120749f273d903a5a296fd4775f15a2a67c2", kill_on_drop: false }`
[INFO] [stdout] bcfbab4943b5da877da80671a05f120749f273d903a5a296fd4775f15a2a67c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72c17e1efee13abd814ee60616762226e06f3b8dea45cf03ad75891d690d5e4f
[INFO] running `Command { std: "docker" "start" "-a" "72c17e1efee13abd814ee60616762226e06f3b8dea45cf03ad75891d690d5e4f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]    Compiling pam-sys v0.5.6
[INFO] [stderr]    Compiling libcrypt-sys v0.0.1 (/opt/rustwide/workdir/libcrypt-sys)
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking object v0.26.1
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking rpassword v5.0.1
[INFO] [stderr]     Checking nix v0.22.1
[INFO] [stderr]     Checking shadow v0.0.1
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pwd v1.3.1
[INFO] [stderr]     Checking mk v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `user`
[INFO] [stdout]  --> src/env.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn create_env(user: pwd::Passwd) -> Vec<CString> {
[INFO] [stdout]   |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_user`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `user`
[INFO] [stdout]  --> src/env.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn create_env(user: pwd::Passwd) -> Vec<CString> {
[INFO] [stdout]   |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_user`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.54s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72c17e1efee13abd814ee60616762226e06f3b8dea45cf03ad75891d690d5e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72c17e1efee13abd814ee60616762226e06f3b8dea45cf03ad75891d690d5e4f", kill_on_drop: false }`
[INFO] [stdout] 72c17e1efee13abd814ee60616762226e06f3b8dea45cf03ad75891d690d5e4f