[INFO] cloning repository https://github.com/kienfssc/learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kienfssc/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkienfssc%2Flearn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkienfssc%2Flearn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9e7fa1b0cf4634af86de9d4ac404265c975b123
[INFO] checking kienfssc/learn_rust against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkienfssc%2Flearn_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kienfssc/learn_rust
[INFO] finished tweaking git repo https://github.com/kienfssc/learn_rust
[INFO] tweaked toml for git repo https://github.com/kienfssc/learn_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kienfssc/learn_rust on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kienfssc/learn_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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb
[INFO] running `Command { std: "docker" "start" "f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking task_003 v0.1.0 (/opt/rustwide/workdir/tasks/task-003)
[INFO] [stderr]     Checking task_009 v0.1.0 (/opt/rustwide/workdir/tasks/task-009)
[INFO] [stderr]     Checking task_007 v0.1.0 (/opt/rustwide/workdir/tasks/task-007)
[INFO] [stderr]     Checking task_004 v0.1.0 (/opt/rustwide/workdir/tasks/task-004)
[INFO] [stderr]     Checking task_008 v0.1.0 (/opt/rustwide/workdir/tasks/task-008)
[INFO] [stderr]     Checking task_010 v0.1.0 (/opt/rustwide/workdir/tasks/task-010)
[INFO] [stderr]     Checking task_002 v0.1.0 (/opt/rustwide/workdir/tasks/task-002)
[INFO] [stderr]     Checking task_001 v0.1.0 (/opt/rustwide/workdir/tasks/task-001)
[INFO] [stderr]     Checking task_006 v0.1.0 (/opt/rustwide/workdir/tasks/task-006)
[INFO] [stderr]     Checking task_005 v0.1.0 (/opt/rustwide/workdir/tasks/task-005)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> tasks/task-004/src/lib.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn label(mut name: String, id: u32) -> String {
[INFO] [stdout]   |              ----^^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> tasks/task-004/src/lib.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn label(mut name: String, id: u32) -> String {
[INFO] [stdout]   |              ----^^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `task_004::TRACK_PROOF`
[INFO] [stdout]  --> tasks/task-004/tests/hidden.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use task_004::{label, TRACK_PROOF};
[INFO] [stdout]   |                       ^^^^^^^^^^^ no `TRACK_PROOF` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `task_004` (test "hidden") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `task_010::TRACK_PROOF`
[INFO] [stdout]  --> tasks/task-010/tests/hidden.rs:1:51
[INFO] [stdout]   |
[INFO] [stdout] 1 | use task_010::{parse_row, passing, Row, RowError, TRACK_PROOF};
[INFO] [stdout]   |                                                   ^^^^^^^^^^^ no `TRACK_PROOF` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `task_005::TRACK_PROOF`
[INFO] [stdout]  --> tasks/task-005/tests/hidden.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use task_005::{longest, TRACK_PROOF};
[INFO] [stdout]   |                         ^^^^^^^^^^^ no `TRACK_PROOF` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `task_006::TRACK_PROOF`
[INFO] [stdout]  --> tasks/task-006/tests/hidden.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use task_006::{Rect, TRACK_PROOF};
[INFO] [stdout]   |                      ^^^^^^^^^^^ no `TRACK_PROOF` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `task_009::TRACK_PROOF`
[INFO] [stdout]  --> tasks/task-009/tests/hidden.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use task_009::{Stack, Summary, TRACK_PROOF};
[INFO] [stdout]   |                                ^^^^^^^^^^^ no `TRACK_PROOF` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `task_010` (test "hidden") due to 1 previous error
[INFO] [stderr] error: could not compile `task_006` (test "hidden") due to 1 previous error
[INFO] [stdout] error[E0432]: unresolved import `task_008::TRACK_PROOF`
[INFO] [stdout]  --> tasks/task-008/tests/hidden.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use task_008::{count_words, TRACK_PROOF};
[INFO] [stdout]   |                             ^^^^^^^^^^^ no `TRACK_PROOF` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `task_009` (test "hidden") due to 1 previous error
[INFO] [stderr] error: could not compile `task_005` (test "hidden") due to 1 previous error
[INFO] [stderr] error: could not compile `task_008` (test "hidden") due to 1 previous error
[INFO] [stdout] error[E0432]: unresolved import `task_007::TRACK_PROOF`
[INFO] [stdout]  --> tasks/task-007/tests/hidden.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use task_007::{eval, Op, TRACK_PROOF};
[INFO] [stdout]   |                          ^^^^^^^^^^^ no `TRACK_PROOF` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `task_007` (test "hidden") due to 1 previous error
[INFO] [stdout] error[E0432]: unresolved import `task_003::TRACK_PROOF`
[INFO] [stdout]  --> tasks/task-003/tests/hidden.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use task_003::{parse_pair, TRACK_PROOF};
[INFO] [stdout]   |                            ^^^^^^^^^^^ no `TRACK_PROOF` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `task_003` (test "hidden") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb", kill_on_drop: false }`
[INFO] [stdout] f6b009615f2271548d56a1e132b26db60c5bc55886cf7d7bc2a8a560cff551bb
