[INFO] cloning repository https://github.com/phillyai/mortal-coil-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phillyai/mortal-coil-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphillyai%2Fmortal-coil-rs", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce9de4e1a2ff7eda4e2300ff4eabd510a2342fdd
[INFO] testing phillyai/mortal-coil-rs against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphillyai%2Fmortal-coil-rs" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/phillyai/mortal-coil-rs on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/phillyai/mortal-coil-rs
[INFO] finished tweaking git repo https://github.com/phillyai/mortal-coil-rs
[INFO] tweaked toml for git repo https://github.com/phillyai/mortal-coil-rs written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/phillyai/mortal-coil-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] cb5621cfc23363a45ac2420c02c9f00f4d3057f6081b3db4a45352d78536e803
[INFO] running `Command { std: "docker" "start" "-a" "cb5621cfc23363a45ac2420c02c9f00f4d3057f6081b3db4a45352d78536e803", kill_on_drop: false }`
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[INFO] [stderr]    Compiling uuid v0.7.1
[INFO] [stderr]    Compiling serde_urlencoded v0.5.3
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling http v0.1.13
[INFO] [stderr]    Compiling tokio-threadpool v0.1.8
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling tokio-reactor v0.1.6
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
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[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling reqwest v0.9.4
[INFO] [stderr]    Compiling mortal-coil v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:89:14
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:89:24
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/main.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `submit_board`
[INFO] [stdout]   --> src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn submit_board(client: &Client, x: usize, y: usize, path: Vec<Dir>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `try_solve`
[INFO] [stdout]   --> src/main.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `U`
[INFO] [stdout]   --> src/main.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     U,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]   --> src/main.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     D,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `R`
[INFO] [stdout]   --> src/main.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     R,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `L`
[INFO] [stdout]   --> src/main.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     L,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `url` should have an upper case name
[INFO] [stdout]   --> src/main.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const url: &str = "http://www.hacker.org/coil/index.php";
[INFO] [stdout]    |       ^^^ help: convert the identifier to upper case: `URL`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 52s
[INFO] running `Command { std: "docker" "inspect" "cb5621cfc23363a45ac2420c02c9f00f4d3057f6081b3db4a45352d78536e803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5621cfc23363a45ac2420c02c9f00f4d3057f6081b3db4a45352d78536e803", kill_on_drop: false }`
[INFO] [stdout] cb5621cfc23363a45ac2420c02c9f00f4d3057f6081b3db4a45352d78536e803
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a2fcb194ceba42885059689bb7c294b7ba28cbf9228ec88d0d606a13cf30170
[INFO] running `Command { std: "docker" "start" "-a" "4a2fcb194ceba42885059689bb7c294b7ba28cbf9228ec88d0d606a13cf30170", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mortal-coil v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:89:14
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:89:24
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/main.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stdout]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `submit_board`
[INFO] [stdout]   --> src/main.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn submit_board(client: &Client, x: usize, y: usize, path: Vec<Dir>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `try_solve`
[INFO] [stdout]   --> src/main.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `U`
[INFO] [stdout]   --> src/main.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     U,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]   --> src/main.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     D,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `R`
[INFO] [stdout]   --> src/main.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     R,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `L`
[INFO] [stdout]   --> src/main.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     L,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:93:10
[INFO] [stdout]    |
[INFO] [stdout] 93 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `url` should have an upper case name
[INFO] [stdout]   --> src/main.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const url: &str = "http://www.hacker.org/coil/index.php";
[INFO] [stdout]    |       ^^^ help: convert the identifier to upper case: `URL`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.31s
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4a2fcb194ceba42885059689bb7c294b7ba28cbf9228ec88d0d606a13cf30170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a2fcb194ceba42885059689bb7c294b7ba28cbf9228ec88d0d606a13cf30170", kill_on_drop: false }`
[INFO] [stdout] 4a2fcb194ceba42885059689bb7c294b7ba28cbf9228ec88d0d606a13cf30170
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0154c172b6c0232320a952eea74510e9a848289a24933e0387484da630aa28a1
[INFO] running `Command { std: "docker" "start" "-a" "0154c172b6c0232320a952eea74510e9a848289a24933e0387484da630aa28a1", 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] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:89:14
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stderr]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:89:24
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stderr]    |                        ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]   --> src/main.rs:89:34
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stderr]    |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `submit_board`
[INFO] [stderr]   --> src/main.rs:46:4
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn submit_board(client: &Client, x: usize, y: usize, path: Vec<Dir>) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `try_solve`
[INFO] [stderr]   --> src/main.rs:89:4
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn try_solve(x: usize, y: usize, board: &Board) -> Option<Vec<Dir>> {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `U`
[INFO] [stderr]   --> src/main.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     U,
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:93:10
[INFO] [stderr]    |
[INFO] [stderr] 93 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `D`
[INFO] [stderr]   --> src/main.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     D,
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:93:10
[INFO] [stderr]    |
[INFO] [stderr] 93 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `R`
[INFO] [stderr]   --> src/main.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     R,
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:93:10
[INFO] [stderr]    |
[INFO] [stderr] 93 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `L`
[INFO] [stderr]   --> src/main.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     L,
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr] note: `Dir` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:93:10
[INFO] [stderr]    |
[INFO] [stderr] 93 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: constant `url` should have an upper case name
[INFO] [stderr]   --> src/main.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 | const url: &str = "http://www.hacker.org/coil/index.php";
[INFO] [stderr]    |       ^^^ help: convert the identifier to upper case: `URL`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mortal-coil` (bin "mortal-coil" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mortal_coil-fab9acaaa18ef0d5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0154c172b6c0232320a952eea74510e9a848289a24933e0387484da630aa28a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0154c172b6c0232320a952eea74510e9a848289a24933e0387484da630aa28a1", kill_on_drop: false }`
[INFO] [stdout] 0154c172b6c0232320a952eea74510e9a848289a24933e0387484da630aa28a1