[INFO] cloning repository https://github.com/staszewski/teaching-material-assignments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/staszewski/teaching-material-assignments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaszewski%2Fteaching-material-assignments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaszewski%2Fteaching-material-assignments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b10424f08d88aba455f69553493aa199fbd22693
[INFO] testing staszewski/teaching-material-assignments against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaszewski%2Fteaching-material-assignments" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/staszewski/teaching-material-assignments on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/staszewski/teaching-material-assignments
[INFO] finished tweaking git repo https://github.com/staszewski/teaching-material-assignments
[INFO] tweaked toml for git repo https://github.com/staszewski/teaching-material-assignments written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/staszewski/teaching-material-assignments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb8b6992cd99d511cd06de8447e223b673d104fc9d39f660344609ad38adc638
[INFO] running `Command { std: "docker" "start" "-a" "bb8b6992cd99d511cd06de8447e223b673d104fc9d39f660344609ad38adc638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb8b6992cd99d511cd06de8447e223b673d104fc9d39f660344609ad38adc638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb8b6992cd99d511cd06de8447e223b673d104fc9d39f660344609ad38adc638", kill_on_drop: false }`
[INFO] [stdout] bb8b6992cd99d511cd06de8447e223b673d104fc9d39f660344609ad38adc638
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aa9c002c24c7f8279d709feb68d8940de035b77612301321bdc1bcb507ff210
[INFO] running `Command { std: "docker" "start" "-a" "8aa9c002c24c7f8279d709feb68d8940de035b77612301321bdc1bcb507ff210", kill_on_drop: false }`
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/io.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         Err(e) => None,
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fizz_buzz`
[INFO] [stdout]  --> src/fizz_buzz.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn fizz_buzz(i: i32) -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_line`
[INFO] [stdout]  --> src/io.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn parse_line(line: String) -> Option<Url> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `io`
[INFO] [stdout]   --> src/io.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn io() {
[INFO] [stdout]    |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.76s
[INFO] running `Command { std: "docker" "inspect" "8aa9c002c24c7f8279d709feb68d8940de035b77612301321bdc1bcb507ff210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aa9c002c24c7f8279d709feb68d8940de035b77612301321bdc1bcb507ff210", kill_on_drop: false }`
[INFO] [stdout] 8aa9c002c24c7f8279d709feb68d8940de035b77612301321bdc1bcb507ff210
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7d64a2d85595195160e391ecf44a9c194d71be4411700921a737a7d4f5176a7
[INFO] running `Command { std: "docker" "start" "-a" "a7d64a2d85595195160e391ecf44a9c194d71be4411700921a737a7d4f5176a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/io.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         Err(e) => None,
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `io`
[INFO] [stdout]   --> src/io.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn io() {
[INFO] [stdout]    |    ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "a7d64a2d85595195160e391ecf44a9c194d71be4411700921a737a7d4f5176a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d64a2d85595195160e391ecf44a9c194d71be4411700921a737a7d4f5176a7", kill_on_drop: false }`
[INFO] [stdout] a7d64a2d85595195160e391ecf44a9c194d71be4411700921a737a7d4f5176a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] becc8d8126b3292786b76aaf22bbe491804cbf47b754abcb86d1b02a4d585ac2
[INFO] running `Command { std: "docker" "start" "-a" "becc8d8126b3292786b76aaf22bbe491804cbf47b754abcb86d1b02a4d585ac2", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/io.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |         Err(e) => None,
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `io`
[INFO] [stderr]   --> src/io.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn io() {
[INFO] [stderr]    |    ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_world-3e81383089ade2da)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test fizz_buzz::tests::test_non_fizz_buzz_value ... ok
[INFO] [stdout] test fizz_buzz::tests::test_fizz ... ok
[INFO] [stdout] test io::tests::no_url ... ok
[INFO] [stdout] test fizz_buzz::tests::test_buzz ... ok
[INFO] [stdout] test fizz_buzz::tests::test_fizzbuzz ... ok
[INFO] [stdout] test io::tests::parse_correctly ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "becc8d8126b3292786b76aaf22bbe491804cbf47b754abcb86d1b02a4d585ac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "becc8d8126b3292786b76aaf22bbe491804cbf47b754abcb86d1b02a4d585ac2", kill_on_drop: false }`
[INFO] [stdout] becc8d8126b3292786b76aaf22bbe491804cbf47b754abcb86d1b02a4d585ac2