[INFO] cloning repository https://github.com/power3xz/rust-in-action
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/power3xz/rust-in-action" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpower3xz%2Frust-in-action", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpower3xz%2Frust-in-action'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 409f37b437ad161cb1dc57f9410ca9123f97dcf6
[INFO] checking power3xz/rust-in-action/409f37b437ad161cb1dc57f9410ca9123f97dcf6 against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpower3xz%2Frust-in-action" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/power3xz/rust-in-action on toolchain f7b43542838f0a4a6cfdb17fbeadf45002042a77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/power3xz/rust-in-action
[INFO] finished tweaking git repo https://github.com/power3xz/rust-in-action
[INFO] tweaked toml for git repo https://github.com/power3xz/rust-in-action written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/power3xz/rust-in-action 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" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f621aae7d4bdf6cbb87686f607541d0d5bd4c6cc69375f2411127e301ed5d8fa
[INFO] running `Command { std: "docker" "start" "-a" "f621aae7d4bdf6cbb87686f607541d0d5bd4c6cc69375f2411127e301ed5d8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f621aae7d4bdf6cbb87686f607541d0d5bd4c6cc69375f2411127e301ed5d8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f621aae7d4bdf6cbb87686f607541d0d5bd4c6cc69375f2411127e301ed5d8fa", kill_on_drop: false }`
[INFO] [stdout] f621aae7d4bdf6cbb87686f607541d0d5bd4c6cc69375f2411127e301ed5d8fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa1f8fdffd29d5ff2a7a1e1faccaec049c19a94b3e4c46edc7fe1f118b918b7f
[INFO] running `Command { std: "docker" "start" "-a" "aa1f8fdffd29d5ff2a7a1e1faccaec049c19a94b3e4c46edc7fe1f118b918b7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking filebasics v0.1.0 (/opt/rustwide/workdir/filebasics)
[INFO] [stderr]     Checking l2-3 v0.1.0 (/opt/rustwide/workdir/l2-3)
[INFO] [stderr]     Checking l4-1 v0.1.0 (/opt/rustwide/workdir/l4-1)
[INFO] [stderr]     Checking l3-25 v0.1.0 (/opt/rustwide/workdir/l3-25)
[INFO] [stderr]     Checking l1-8 v0.1.0 (/opt/rustwide/workdir/l1-8)
[INFO] [stderr]     Checking l2-4 v0.1.0 (/opt/rustwide/workdir/l2-4)
[INFO] [stderr]     Checking l5-7 v0.1.0 (/opt/rustwide/workdir/l5-7)
[INFO] [stdout] error[E0382]: borrow of moved value: `letters`
[INFO] [stdout]  --> l1-8/src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut letters = vec!["a", "b", "b"];
[INFO] [stdout]   |         ----------- move occurs because `letters` has type `Vec<&str>`, which does not implement the `Copy` trait
[INFO] [stdout] 3 |
[INFO] [stdout] 4 |     for letter in letters {
[INFO] [stdout]   |                   ------- `letters` moved due to this implicit call to `.into_iter()`
[INFO] [stdout] 5 |         println!("{}", letter);
[INFO] [stdout] 6 |         letters.push(letter.clone());
[INFO] [stdout]   |         ^^^^^^^ value borrowed here after move
[INFO] [stdout]   |
[INFO] [stdout] note: `into_iter` takes ownership of the receiver `self`, which moves `letters`
[INFO] [stdout]  --> /rustc/f7b43542838f0a4a6cfdb17fbeadf45002042a77/library/core/src/iter/traits/collect.rs:313:18
[INFO] [stdout] help: consider iterating over a slice of the `Vec<&str>`'s content to avoid moving into the `for` loop
[INFO] [stdout]   |
[INFO] [stdout] 4 |     for letter in &letters {
[INFO] [stdout]   |                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `l1-8` (bin "l1-8") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "aa1f8fdffd29d5ff2a7a1e1faccaec049c19a94b3e4c46edc7fe1f118b918b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa1f8fdffd29d5ff2a7a1e1faccaec049c19a94b3e4c46edc7fe1f118b918b7f", kill_on_drop: false }`
[INFO] [stdout] aa1f8fdffd29d5ff2a7a1e1faccaec049c19a94b3e4c46edc7fe1f118b918b7f