[INFO] cloning repository https://github.com/AkihiroSasabe/hundred_problems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AkihiroSasabe/hundred_problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkihiroSasabe%2Fhundred_problems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkihiroSasabe%2Fhundred_problems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88082c97e72cd9e737bf18b6dbad5841efb90923
[INFO] checking AkihiroSasabe/hundred_problems against try#18c1d185ac7a6a3bf399296b35e4b2736809a756 for pr-146972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkihiroSasabe%2Fhundred_problems" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AkihiroSasabe/hundred_problems
[INFO] finished tweaking git repo https://github.com/AkihiroSasabe/hundred_problems
[INFO] tweaked toml for git repo https://github.com/AkihiroSasabe/hundred_problems written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AkihiroSasabe/hundred_problems on toolchain 18c1d185ac7a6a3bf399296b35e4b2736809a756
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AkihiroSasabe/hundred_problems 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" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cac1bf8ec7e0843dc9aaf75b8141e5b6abd5b32374766374663c20640a4d8cfe
[INFO] running `Command { std: "docker" "start" "-a" "cac1bf8ec7e0843dc9aaf75b8141e5b6abd5b32374766374663c20640a4d8cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cac1bf8ec7e0843dc9aaf75b8141e5b6abd5b32374766374663c20640a4d8cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac1bf8ec7e0843dc9aaf75b8141e5b6abd5b32374766374663c20640a4d8cfe", kill_on_drop: false }`
[INFO] [stdout] cac1bf8ec7e0843dc9aaf75b8141e5b6abd5b32374766374663c20640a4d8cfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29d615522d6ed4b291b99c7b9ee6bc378a9447759ab10fa67e7b227a40bc7963
[INFO] running `Command { std: "docker" "start" "-a" "29d615522d6ed4b291b99c7b9ee6bc378a9447759ab10fa67e7b227a40bc7963", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking proconio v0.3.8
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking hundred_problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read `src/q044.rs`: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read `src/q046.rs`: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read `src/q064.rs`: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hundred_problems` (bin "q046") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: couldn't read `src/q008.rs`: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hundred_problems` (bin "q044") due to 1 previous error
[INFO] [stdout] error: couldn't read `src/q062.rs`: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hundred_problems` (bin "q062") due to 1 previous error
[INFO] [stderr] error: could not compile `hundred_problems` (bin "q008" test) due to 1 previous error
[INFO] [stderr] error: could not compile `hundred_problems` (bin "q064" test) due to 1 previous error
[INFO] [stdout] warning: variable `max_i` is assigned to, but never used
[INFO] [stdout]   --> src/q004.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut max_i=0;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_max_i` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `max_j` is assigned to, but never used
[INFO] [stdout]   --> src/q004.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut max_j=1;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_max_j` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `max_i` is never read
[INFO] [stdout]   --> src/q004.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 max_i = i;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `max_j` is never read
[INFO] [stdout]   --> src/q004.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 max_j = j;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "29d615522d6ed4b291b99c7b9ee6bc378a9447759ab10fa67e7b227a40bc7963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29d615522d6ed4b291b99c7b9ee6bc378a9447759ab10fa67e7b227a40bc7963", kill_on_drop: false }`
[INFO] [stdout] 29d615522d6ed4b291b99c7b9ee6bc378a9447759ab10fa67e7b227a40bc7963
