[INFO] cloning repository https://github.com/tolumide-ng/osys
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tolumide-ng/osys" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftolumide-ng%2Fosys", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftolumide-ng%2Fosys'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a041d935ff8c621fa6bc7ba34b16ddbeb7aee80
[INFO] checking tolumide-ng/osys against try#3fada14ee01d755dc8076e611f11bf65b28ffd21 for pr-154971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftolumide-ng%2Fosys" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tolumide-ng/osys
[INFO] finished tweaking git repo https://github.com/tolumide-ng/osys
[INFO] tweaked toml for git repo https://github.com/tolumide-ng/osys written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tolumide-ng/osys on toolchain 3fada14ee01d755dc8076e611f11bf65b28ffd21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tolumide-ng/osys 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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fc6710a21a1db9b53db786ecb2340f0b02efee0633943b68836956364df2992
[INFO] running `Command { std: "docker" "start" "-a" "5fc6710a21a1db9b53db786ecb2340f0b02efee0633943b68836956364df2992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fc6710a21a1db9b53db786ecb2340f0b02efee0633943b68836956364df2992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc6710a21a1db9b53db786ecb2340f0b02efee0633943b68836956364df2992", kill_on_drop: false }`
[INFO] [stdout] 5fc6710a21a1db9b53db786ecb2340f0b02efee0633943b68836956364df2992
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0fbc32ff8b9940c92ff7702d8db6daa197e442b8fe1736246289210e552d55d
[INFO] running `Command { std: "docker" "start" "-a" "e0fbc32ff8b9940c92ff7702d8db6daa197e442b8fe1736246289210e552d55d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling nix v0.31.1
[INFO] [stderr]     Checking osteps v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `p1` and `p2`
[INFO] [stdout]  --> src/main.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::pid::{p1, p2, p4};
[INFO] [stdout]   |                  ^^  ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `p1` and `p2`
[INFO] [stdout]  --> src/main.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::pid::{p1, p2, p4};
[INFO] [stdout]   |                  ^^  ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/pid/p3.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             execvp(&prog, &args).expect("failed");
[INFO] [stdout]    |             ------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 26 |
[INFO] [stdout] 27 |             println!("this shouldn't print out");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/pid/p3.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             execvp(&prog, &args).expect("failed");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p1c` is never used
[INFO] [stdout]  --> src/pid/p1.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn p1c() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p2` is never used
[INFO] [stdout]   --> src/pid/p2.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn p2() {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p3` is never used
[INFO] [stdout]  --> src/pid/p3.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn p3() {
[INFO] [stdout]   |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/pid/p3.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             execvp(&prog, &args).expect("failed");
[INFO] [stdout]    |             ------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 26 |
[INFO] [stdout] 27 |             println!("this shouldn't print out");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/pid/p3.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             execvp(&prog, &args).expect("failed");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p1c` is never used
[INFO] [stdout]  --> src/pid/p1.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn p1c() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p2` is never used
[INFO] [stdout]   --> src/pid/p2.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn p2() {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p3` is never used
[INFO] [stdout]  --> src/pid/p3.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn p3() {
[INFO] [stdout]   |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.99s
[INFO] running `Command { std: "docker" "inspect" "e0fbc32ff8b9940c92ff7702d8db6daa197e442b8fe1736246289210e552d55d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0fbc32ff8b9940c92ff7702d8db6daa197e442b8fe1736246289210e552d55d", kill_on_drop: false }`
[INFO] [stdout] e0fbc32ff8b9940c92ff7702d8db6daa197e442b8fe1736246289210e552d55d