[INFO] cloning repository https://github.com/anand-prem/twenty-one-days-of-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anand-prem/twenty-one-days-of-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanand-prem%2Ftwenty-one-days-of-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanand-prem%2Ftwenty-one-days-of-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ad786cdac09e8851e2d7db341d8ae844977a2f9
[INFO] testing anand-prem/twenty-one-days-of-rust against master#9e297bf54d31eb3b30067208ff9af4416945a2ed for pr-125507
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanand-prem%2Ftwenty-one-days-of-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anand-prem/twenty-one-days-of-rust on toolchain 9e297bf54d31eb3b30067208ff9af4416945a2ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anand-prem/twenty-one-days-of-rust
[INFO] finished tweaking git repo https://github.com/anand-prem/twenty-one-days-of-rust
[INFO] tweaked toml for git repo https://github.com/anand-prem/twenty-one-days-of-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/anand-prem/twenty-one-days-of-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" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b124bf79139ceffc7adf082d0f969bb3df2dddcbff154720aeaff4b1f42ebab9
[INFO] running `Command { std: "docker" "start" "-a" "b124bf79139ceffc7adf082d0f969bb3df2dddcbff154720aeaff4b1f42ebab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b124bf79139ceffc7adf082d0f969bb3df2dddcbff154720aeaff4b1f42ebab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b124bf79139ceffc7adf082d0f969bb3df2dddcbff154720aeaff4b1f42ebab9", kill_on_drop: false }`
[INFO] [stdout] b124bf79139ceffc7adf082d0f969bb3df2dddcbff154720aeaff4b1f42ebab9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58a1a458be8f44103654f5c4d6537e6ff59dde5a829ff647ee5c516b973d6cca
[INFO] running `Command { std: "docker" "start" "-a" "58a1a458be8f44103654f5c4d6537e6ff59dde5a829ff647ee5c516b973d6cca", kill_on_drop: false }`
[INFO] [stderr]    Compiling twenty-one-days-of-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/day_1.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |   struct Person<'a> {
[INFO] [stdout]    |          ------ fields in this struct
[INFO] [stdout] 31 |     name: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     age: u8
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_number_match` is never used
[INFO] [stdout]   --> src/half_hour.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print_number_match(n: Number) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "58a1a458be8f44103654f5c4d6537e6ff59dde5a829ff647ee5c516b973d6cca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58a1a458be8f44103654f5c4d6537e6ff59dde5a829ff647ee5c516b973d6cca", kill_on_drop: false }`
[INFO] [stdout] 58a1a458be8f44103654f5c4d6537e6ff59dde5a829ff647ee5c516b973d6cca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09811ef3d98d9301154737a7dc29e9b1fa05fe38ca6479cf818ec29b98032080
[INFO] running `Command { std: "docker" "start" "-a" "09811ef3d98d9301154737a7dc29e9b1fa05fe38ca6479cf818ec29b98032080", kill_on_drop: false }`
[INFO] [stderr]    Compiling twenty-one-days-of-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/day_1.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |   struct Person<'a> {
[INFO] [stdout]    |          ------ fields in this struct
[INFO] [stdout] 31 |     name: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     age: u8
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_number_match` is never used
[INFO] [stdout]   --> src/half_hour.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print_number_match(n: Number) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "09811ef3d98d9301154737a7dc29e9b1fa05fe38ca6479cf818ec29b98032080", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09811ef3d98d9301154737a7dc29e9b1fa05fe38ca6479cf818ec29b98032080", kill_on_drop: false }`
[INFO] [stdout] 09811ef3d98d9301154737a7dc29e9b1fa05fe38ca6479cf818ec29b98032080
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b828020dac9ad4ded74fcca5001a1e36c0daa03730ef902a3fc83d378870a83
[INFO] running `Command { std: "docker" "start" "-a" "4b828020dac9ad4ded74fcca5001a1e36c0daa03730ef902a3fc83d378870a83", kill_on_drop: false }`
[INFO] [stderr] warning: fields `name` and `age` are never read
[INFO] [stderr]   --> src/day_1.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |   struct Person<'a> {
[INFO] [stderr]    |          ------ fields in this struct
[INFO] [stderr] 31 |     name: &'a str,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 32 |     age: u8
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_number_match` is never used
[INFO] [stderr]   --> src/half_hour.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn print_number_match(n: Number) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `twenty-one-days-of-rust` (bin "twenty-one-days-of-rust" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twenty_one_days_of_rust-c27e58db9703c483)
[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" "4b828020dac9ad4ded74fcca5001a1e36c0daa03730ef902a3fc83d378870a83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b828020dac9ad4ded74fcca5001a1e36c0daa03730ef902a3fc83d378870a83", kill_on_drop: false }`
[INFO] [stdout] 4b828020dac9ad4ded74fcca5001a1e36c0daa03730ef902a3fc83d378870a83