[INFO] fetching crate ngram 0.1.13...
[INFO] testing ngram-0.1.13 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate ngram 0.1.13 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate ngram 0.1.13
[INFO] finished tweaking crates.io crate ngram 0.1.13
[INFO] tweaked toml for crates.io crate ngram 0.1.13 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ngram 0.1.13 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b81563c002357d148dab6d2661734aea994125768e4386e82295871f1d5bd89
[INFO] running `Command { std: "docker" "start" "-a" "1b81563c002357d148dab6d2661734aea994125768e4386e82295871f1d5bd89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b81563c002357d148dab6d2661734aea994125768e4386e82295871f1d5bd89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b81563c002357d148dab6d2661734aea994125768e4386e82295871f1d5bd89", kill_on_drop: false }`
[INFO] [stdout] 1b81563c002357d148dab6d2661734aea994125768e4386e82295871f1d5bd89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffc8c5252782f73404bdb4881650c55fe86a48422089548c0ed4378dd058d9a1
[INFO] running `Command { std: "docker" "start" "-a" "ffc8c5252782f73404bdb4881650c55fe86a48422089548c0ed4378dd058d9a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ngram v0.1.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: feature `test` is declared but not used
[INFO] [stdout]   --> src/lib.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(test)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "ffc8c5252782f73404bdb4881650c55fe86a48422089548c0ed4378dd058d9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffc8c5252782f73404bdb4881650c55fe86a48422089548c0ed4378dd058d9a1", kill_on_drop: false }`
[INFO] [stdout] ffc8c5252782f73404bdb4881650c55fe86a48422089548c0ed4378dd058d9a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf5cb23585728c99edc7aea38c83fff25ba6f8d9d2a3794a8f27b2af344121ca
[INFO] running `Command { std: "docker" "start" "-a" "cf5cb23585728c99edc7aea38c83fff25ba6f8d9d2a3794a8f27b2af344121ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling ngram v0.1.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: feature `test` is declared but not used
[INFO] [stdout]   --> src/lib.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(test)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "cf5cb23585728c99edc7aea38c83fff25ba6f8d9d2a3794a8f27b2af344121ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5cb23585728c99edc7aea38c83fff25ba6f8d9d2a3794a8f27b2af344121ca", kill_on_drop: false }`
[INFO] [stdout] cf5cb23585728c99edc7aea38c83fff25ba6f8d9d2a3794a8f27b2af344121ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c975273d1416c9d1cd3f835402cc83818fa74aa835bf7b782989e17cc8c2b29b
[INFO] running `Command { std: "docker" "start" "-a" "c975273d1416c9d1cd3f835402cc83818fa74aa835bf7b782989e17cc8c2b29b", kill_on_drop: false }`
[INFO] [stderr] warning: feature `test` is declared but not used
[INFO] [stderr]   --> src/lib.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | #![feature(test)]
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ngram` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ngram-2512066565fe2eef)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_ngram::bench_kskip_ngrams ... ok
[INFO] [stdout] test test_ngram::kskip_ngrams ... ok
[INFO] [stdout] test test_ngram::ngrams ... ok
[INFO] [stdout] test test_ngram::bench_ngrams ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ngram
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - NGram (line 47) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c975273d1416c9d1cd3f835402cc83818fa74aa835bf7b782989e17cc8c2b29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c975273d1416c9d1cd3f835402cc83818fa74aa835bf7b782989e17cc8c2b29b", kill_on_drop: false }`
[INFO] [stdout] c975273d1416c9d1cd3f835402cc83818fa74aa835bf7b782989e17cc8c2b29b