[INFO] cloning repository https://github.com/fallra1n/rust-study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fallra1n/rust-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallra1n%2Frust-study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallra1n%2Frust-study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c59f44f052d2bcfa4ea09db8ff8d58cabc5b313
[INFO] testing fallra1n/rust-study against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallra1n%2Frust-study" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fallra1n/rust-study
[INFO] finished tweaking git repo https://github.com/fallra1n/rust-study
[INFO] tweaked toml for git repo https://github.com/fallra1n/rust-study written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fallra1n/rust-study on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fallra1n/rust-study 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2fd8e0213503145703350fbd5277c6c7b54318d362ffaacca533761e1c97ded
[INFO] running `Command { std: "docker" "start" "-a" "c2fd8e0213503145703350fbd5277c6c7b54318d362ffaacca533761e1c97ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2fd8e0213503145703350fbd5277c6c7b54318d362ffaacca533761e1c97ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2fd8e0213503145703350fbd5277c6c7b54318d362ffaacca533761e1c97ded", kill_on_drop: false }`
[INFO] [stdout] c2fd8e0213503145703350fbd5277c6c7b54318d362ffaacca533761e1c97ded
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea43b963ebcbac139790336eeec15ed2eb809934418914885e787bec1bb4ed0e
[INFO] running `Command { std: "docker" "start" "-a" "ea43b963ebcbac139790336eeec15ed2eb809934418914885e787bec1bb4ed0e", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "ea43b963ebcbac139790336eeec15ed2eb809934418914885e787bec1bb4ed0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea43b963ebcbac139790336eeec15ed2eb809934418914885e787bec1bb4ed0e", kill_on_drop: false }`
[INFO] [stdout] ea43b963ebcbac139790336eeec15ed2eb809934418914885e787bec1bb4ed0e
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fae98e01994aa8d2f9eeaeb7847c9ac7352fb96d563c15176460d27a926b5ef2
[INFO] running `Command { std: "docker" "start" "-a" "fae98e01994aa8d2f9eeaeb7847c9ac7352fb96d563c15176460d27a926b5ef2", kill_on_drop: false }`
[INFO] [stderr]    Compiling combinations v0.1.0 (/opt/rustwide/workdir/combinations)
[INFO] [stderr]    Compiling conway v0.1.0 (/opt/rustwide/workdir/conway)
[INFO] [stderr]    Compiling mpsc v0.1.0 (/opt/rustwide/workdir/mpsc)
[INFO] [stderr]    Compiling comm v0.1.0 (/opt/rustwide/workdir/comm)
[INFO] [stderr]    Compiling trust v0.1.0 (/opt/rustwide/workdir/trust)
[INFO] [stderr]    Compiling itertools v0.2.0 (/opt/rustwide/workdir/itertools)
[INFO] [stderr]    Compiling prefix v0.1.0 (/opt/rustwide/workdir/prefix)
[INFO] [stderr]    Compiling min-queue v0.1.0 (/opt/rustwide/workdir/min-queue)
[INFO] [stderr]    Compiling lru-cache v0.1.0 (/opt/rustwide/workdir/lru-cache)
[INFO] [stderr]    Compiling flatmap v0.1.0 (/opt/rustwide/workdir/flatmap)
[INFO] [stderr]    Compiling examples v0.1.0 (/opt/rustwide/workdir/examples)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/itertools.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut base = data.iter();
[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: unused import: `RoundOutcome`
[INFO] [stdout]  --> examples/trust.rs:2:88
[INFO] [stdout]   |
[INFO] [stdout] 2 |     CheatingAgent, CooperatingAgent, CopycatAgent, DetectiveAgent, Game, GrudgerAgent, RoundOutcome,
[INFO] [stdout]   |                                                                                        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "fae98e01994aa8d2f9eeaeb7847c9ac7352fb96d563c15176460d27a926b5ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae98e01994aa8d2f9eeaeb7847c9ac7352fb96d563c15176460d27a926b5ef2", kill_on_drop: false }`
[INFO] [stdout] fae98e01994aa8d2f9eeaeb7847c9ac7352fb96d563c15176460d27a926b5ef2
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04becec701d08fe5b1c61ff03bad1b91e7a1f2de92044315a34d0ec86a0f3cd8
[INFO] running `Command { std: "docker" "start" "-a" "04becec701d08fe5b1c61ff03bad1b91e7a1f2de92044315a34d0ec86a0f3cd8", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/itertools.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut base = data.iter();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RoundOutcome`
[INFO] [stderr]  --> examples/trust.rs:2:88
[INFO] [stderr]   |
[INFO] [stderr] 2 |     CheatingAgent, CooperatingAgent, CopycatAgent, DetectiveAgent, Game, GrudgerAgent, RoundOutcome,
[INFO] [stderr]   |                                                                                        ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `examples` (example "itertools") generated 1 warning (run `cargo fix --example "itertools"` to apply 1 suggestion)
[INFO] [stderr] warning: `examples` (example "trust") generated 1 warning (run `cargo fix --example "trust"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/combinations-f663dc429162adb0)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/comm-e57184cc0acc115c)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/conway-83731863ee00622e)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flatmap-b8ddc9b3f0f4c345)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/itertools-343de91f487a9b18)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lru_cache-29c4d4f858638bdb)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/min_queue-bb2ff455684442f8)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mpsc-72315740924d055a)
[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] [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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/prefix-889b2fda135b90a4)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/trust-a4d0913de73a6aef)
[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] [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] [stderr]    Doc-tests combinations
[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] [stderr]    Doc-tests comm
[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] [stderr]    Doc-tests conway
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[INFO] [stderr]    Doc-tests flatmap
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[INFO] [stderr]    Doc-tests itertools
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[INFO] [stderr]    Doc-tests lru_cache
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[INFO] [stdout] running 0 tests
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[INFO] [stderr]    Doc-tests min_queue
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[INFO] [stdout] running 0 tests
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[INFO] [stderr]    Doc-tests mpsc
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[INFO] [stdout] running 0 tests
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[INFO] [stderr]    Doc-tests prefix
[INFO] [stderr]    Doc-tests trust
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[INFO] [stdout] running 0 tests
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[INFO] running `Command { std: "docker" "inspect" "04becec701d08fe5b1c61ff03bad1b91e7a1f2de92044315a34d0ec86a0f3cd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04becec701d08fe5b1c61ff03bad1b91e7a1f2de92044315a34d0ec86a0f3cd8", kill_on_drop: false }`
[INFO] [stdout] 04becec701d08fe5b1c61ff03bad1b91e7a1f2de92044315a34d0ec86a0f3cd8