[INFO] cloning repository https://github.com/fzingg/caesar-cypher-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fzingg/caesar-cypher-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzingg%2Fcaesar-cypher-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzingg%2Fcaesar-cypher-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b1750ec726a002931ab934c0c36d5f590ca3b64
[INFO] checking fzingg/caesar-cypher-rust against master#18a029cfe8e761533634bda8fe8a14e30280a21b for pr-139646
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzingg%2Fcaesar-cypher-rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fzingg/caesar-cypher-rust on toolchain 18a029cfe8e761533634bda8fe8a14e30280a21b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18a029cfe8e761533634bda8fe8a14e30280a21b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fzingg/caesar-cypher-rust
[INFO] finished tweaking git repo https://github.com/fzingg/caesar-cypher-rust
[INFO] tweaked toml for git repo https://github.com/fzingg/caesar-cypher-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fzingg/caesar-cypher-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" "+18a029cfe8e761533634bda8fe8a14e30280a21b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+18a029cfe8e761533634bda8fe8a14e30280a21b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1e413fff73dc6cc91c5126f341345bb15852def90fdc8f168d14f0896af83c1
[INFO] running `Command { std: "docker" "start" "-a" "e1e413fff73dc6cc91c5126f341345bb15852def90fdc8f168d14f0896af83c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1e413fff73dc6cc91c5126f341345bb15852def90fdc8f168d14f0896af83c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1e413fff73dc6cc91c5126f341345bb15852def90fdc8f168d14f0896af83c1", kill_on_drop: false }`
[INFO] [stdout] e1e413fff73dc6cc91c5126f341345bb15852def90fdc8f168d14f0896af83c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+18a029cfe8e761533634bda8fe8a14e30280a21b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a23479d83f175b77e8eea573483bd7e97a21b51997d508dc3081a41d4fd75ad
[INFO] running `Command { std: "docker" "start" "-a" "1a23479d83f175b77e8eea573483bd7e97a21b51997d508dc3081a41d4fd75ad", kill_on_drop: false }`
[INFO] [stderr]     Checking caesar-cypher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `j` is never read
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut j = 0;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     for (i, elem) in s.chars().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `capitalized` is never read
[INFO] [stdout]   --> src/main.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut capitalized = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/main.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             other => encoded_letter_index - 26
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `j` is never read
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut j = 0;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     for (i, elem) in s.chars().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `capitalized` is never read
[INFO] [stdout]   --> src/main.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let mut capitalized = false;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/main.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |             other => encoded_letter_index - 26
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/caesar_cypher-f2f7d926f1f375a5.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/caesar-cypher-f2f7d926f1f375a5/dep-test-bin-caesar-cypher`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "1a23479d83f175b77e8eea573483bd7e97a21b51997d508dc3081a41d4fd75ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a23479d83f175b77e8eea573483bd7e97a21b51997d508dc3081a41d4fd75ad", kill_on_drop: false }`
[INFO] [stdout] 1a23479d83f175b77e8eea573483bd7e97a21b51997d508dc3081a41d4fd75ad