[INFO] cloning repository https://github.com/masinc/nlp100-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/masinc/nlp100-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasinc%2Fnlp100-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasinc%2Fnlp100-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4fa9ddc21ff46b00aa4d55a93113fa9c0ede2c8
[INFO] building masinc/nlp100-rust against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasinc%2Fnlp100-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/masinc/nlp100-rust
[INFO] finished tweaking git repo https://github.com/masinc/nlp100-rust
[INFO] tweaked toml for git repo https://github.com/masinc/nlp100-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/masinc/nlp100-rust on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/masinc/nlp100-rust 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded thiserror-impl v1.0.25
[INFO] [stderr]   Downloaded itertools v0.10.0
[INFO] [stderr]   Downloaded thiserror v1.0.25
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bfab5a87902387a2ef5929ee5a73b335008f9a181bda8c0faa0424c707f4f4e
[INFO] running `Command { std: "docker" "start" "-a" "7bfab5a87902387a2ef5929ee5a73b335008f9a181bda8c0faa0424c707f4f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bfab5a87902387a2ef5929ee5a73b335008f9a181bda8c0faa0424c707f4f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bfab5a87902387a2ef5929ee5a73b335008f9a181bda8c0faa0424c707f4f4e", kill_on_drop: false }`
[INFO] [stdout] 7bfab5a87902387a2ef5929ee5a73b335008f9a181bda8c0faa0424c707f4f4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25063276f56c19d093275e0ba122dd7b9b03cb76e4465e8978fe496d6174b552
[INFO] running `Command { std: "docker" "start" "-a" "25063276f56c19d093275e0ba122dd7b9b03cb76e4465e8978fe496d6174b552", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling nlp100-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Problem00` is never constructed
[INFO] [stdout]  --> src/ch01/problem00.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Problem00 {}
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem01` is never constructed
[INFO] [stdout]  --> src/ch01/problem01.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Problem01;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem02` is never constructed
[INFO] [stdout]  --> src/ch01/problem02.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Problem02;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem03` is never constructed
[INFO] [stdout]  --> src/ch01/problem03.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Problem03;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]  --> src/ch01/problem03.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Error {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem04` is never constructed
[INFO] [stdout]  --> src/ch01/problem04.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Problem04;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]  --> src/ch01/problem04.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Args {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem05` is never constructed
[INFO] [stdout]  --> src/ch01/problem05.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Problem05;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> src/ch01/problem05.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Args {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Result` is never constructed
[INFO] [stdout]   --> src/ch01/problem05.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub(crate) struct Result {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem06` is never constructed
[INFO] [stdout]  --> src/ch01/problem06.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Problem06;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> src/ch01/problem06.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Args {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Result` is never constructed
[INFO] [stdout]   --> src/ch01/problem06.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Result {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem07` is never constructed
[INFO] [stdout]  --> src/ch01/problem07.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Problem07;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]  --> src/ch01/problem07.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Args {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Problem08` is never constructed
[INFO] [stdout]  --> src/ch01/problem08.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Problem08;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cipher` is never used
[INFO] [stdout]  --> src/ch01/problem08.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn cipher(text: String) -> String {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.84s
[INFO] running `Command { std: "docker" "inspect" "25063276f56c19d093275e0ba122dd7b9b03cb76e4465e8978fe496d6174b552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25063276f56c19d093275e0ba122dd7b9b03cb76e4465e8978fe496d6174b552", kill_on_drop: false }`
[INFO] [stdout] 25063276f56c19d093275e0ba122dd7b9b03cb76e4465e8978fe496d6174b552
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c1afc5a3267789b84916013e981ce987fa52d1b6d9b1f39aeacd6498cf4964e
[INFO] running `Command { std: "docker" "start" "-a" "1c1afc5a3267789b84916013e981ce987fa52d1b6d9b1f39aeacd6498cf4964e", kill_on_drop: false }`
[INFO] [stderr]    Compiling nlp100-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "1c1afc5a3267789b84916013e981ce987fa52d1b6d9b1f39aeacd6498cf4964e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c1afc5a3267789b84916013e981ce987fa52d1b6d9b1f39aeacd6498cf4964e", kill_on_drop: false }`
[INFO] [stdout] 1c1afc5a3267789b84916013e981ce987fa52d1b6d9b1f39aeacd6498cf4964e
