[INFO] cloning repository https://github.com/corocn/rust_nlp100
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/corocn/rust_nlp100" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorocn%2Frust_nlp100", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorocn%2Frust_nlp100'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a565976b5f109ee39367657581c2f14a14bb4964
[INFO] testing corocn/rust_nlp100 against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorocn%2Frust_nlp100" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/corocn/rust_nlp100 on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/corocn/rust_nlp100
[INFO] finished tweaking git repo https://github.com/corocn/rust_nlp100
[INFO] tweaked toml for git repo https://github.com/corocn/rust_nlp100 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/corocn/rust_nlp100 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing corocn/rust_nlp100 against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorocn%2Frust_nlp100" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/corocn/rust_nlp100 on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/corocn/rust_nlp100
[INFO] finished tweaking git repo https://github.com/corocn/rust_nlp100
[INFO] tweaked toml for git repo https://github.com/corocn/rust_nlp100 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/corocn/rust_nlp100 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7c7c7a36ee521a9abe57e44e8e2509d154b9039b1a775b83bac4b93c6b743a2
[INFO] running `Command { std: "docker" "start" "-a" "f7c7c7a36ee521a9abe57e44e8e2509d154b9039b1a775b83bac4b93c6b743a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7c7c7a36ee521a9abe57e44e8e2509d154b9039b1a775b83bac4b93c6b743a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c7c7a36ee521a9abe57e44e8e2509d154b9039b1a775b83bac4b93c6b743a2", kill_on_drop: false }`
[INFO] [stdout] f7c7c7a36ee521a9abe57e44e8e2509d154b9039b1a775b83bac4b93c6b743a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd641b9ea45e9db855cf9122603f681a50ee592eead1b9e906f3f9248c7877d3
[INFO] running `Command { std: "docker" "start" "-a" "dd641b9ea45e9db855cf9122603f681a50ee592eead1b9e906f3f9248c7877d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_nlp100 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/chapter1.rs:125:14
[INFO] [stdout]     |
[INFO] [stdout] 125 |     for i in (0..len) {
[INFO] [stdout]     |              ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 125 -     for i in (0..len) {
[INFO] [stdout] 125 +     for i in 0..len {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/chapter1.rs:128:18
[INFO] [stdout]     |
[INFO] [stdout] 128 |         for x in (0..n) {
[INFO] [stdout]     |                  ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 128 -         for x in (0..n) {
[INFO] [stdout] 128 +         for x in 0..n {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p000` is never used
[INFO] [stdout]  --> src/chapter1.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn p000() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p001` is never used
[INFO] [stdout]   --> src/chapter1.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn p001() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p002` is never used
[INFO] [stdout]   --> src/chapter1.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn p002() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p003` is never used
[INFO] [stdout]   --> src/chapter1.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn p003() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p004` is never used
[INFO] [stdout]   --> src/chapter1.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn p004() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p005` is never used
[INFO] [stdout]    --> src/chapter1.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn p005() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "dd641b9ea45e9db855cf9122603f681a50ee592eead1b9e906f3f9248c7877d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd641b9ea45e9db855cf9122603f681a50ee592eead1b9e906f3f9248c7877d3", kill_on_drop: false }`
[INFO] [stdout] dd641b9ea45e9db855cf9122603f681a50ee592eead1b9e906f3f9248c7877d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d963c2206cfef4b2c4aff94f4a00b9901d07dbbd5bfbfd46a2f524c5efee5729
[INFO] running `Command { std: "docker" "start" "-a" "d963c2206cfef4b2c4aff94f4a00b9901d07dbbd5bfbfd46a2f524c5efee5729", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_nlp100 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/chapter1.rs:125:14
[INFO] [stdout]     |
[INFO] [stdout] 125 |     for i in (0..len) {
[INFO] [stdout]     |              ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 125 -     for i in (0..len) {
[INFO] [stdout] 125 +     for i in 0..len {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/chapter1.rs:128:18
[INFO] [stdout]     |
[INFO] [stdout] 128 |         for x in (0..n) {
[INFO] [stdout]     |                  ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 128 -         for x in (0..n) {
[INFO] [stdout] 128 +         for x in 0..n {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p000` is never used
[INFO] [stdout]  --> src/chapter1.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn p000() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p001` is never used
[INFO] [stdout]   --> src/chapter1.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn p001() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p002` is never used
[INFO] [stdout]   --> src/chapter1.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn p002() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p003` is never used
[INFO] [stdout]   --> src/chapter1.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn p003() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p004` is never used
[INFO] [stdout]   --> src/chapter1.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn p004() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `p005` is never used
[INFO] [stdout]    --> src/chapter1.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn p005() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "d963c2206cfef4b2c4aff94f4a00b9901d07dbbd5bfbfd46a2f524c5efee5729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d963c2206cfef4b2c4aff94f4a00b9901d07dbbd5bfbfd46a2f524c5efee5729", kill_on_drop: false }`
[INFO] [stdout] d963c2206cfef4b2c4aff94f4a00b9901d07dbbd5bfbfd46a2f524c5efee5729
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a64c68cae71da0ba25dfc5505304f8256ce47eaaeca29bca3a70522f877de0f
[INFO] running `Command { std: "docker" "start" "-a" "6a64c68cae71da0ba25dfc5505304f8256ce47eaaeca29bca3a70522f877de0f", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]    --> src/chapter1.rs:125:14
[INFO] [stderr]     |
[INFO] [stderr] 125 |     for i in (0..len) {
[INFO] [stderr]     |              ^      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 125 -     for i in (0..len) {
[INFO] [stderr] 125 +     for i in 0..len {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]    --> src/chapter1.rs:128:18
[INFO] [stderr]     |
[INFO] [stderr] 128 |         for x in (0..n) {
[INFO] [stderr]     |                  ^    ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 128 -         for x in (0..n) {
[INFO] [stderr] 128 +         for x in 0..n {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: function `p000` is never used
[INFO] [stderr]  --> src/chapter1.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn p000() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `p001` is never used
[INFO] [stderr]   --> src/chapter1.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn p001() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `p002` is never used
[INFO] [stderr]   --> src/chapter1.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn p002() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `p003` is never used
[INFO] [stderr]   --> src/chapter1.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn p003() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `p004` is never used
[INFO] [stderr]   --> src/chapter1.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn p004() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `p005` is never used
[INFO] [stderr]    --> src/chapter1.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub fn p005() {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_nlp100` (bin "rust_nlp100" test) generated 8 warnings (run `cargo fix --bin "rust_nlp100" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_nlp100-7d75a15592d8d5ff)
[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] running `Command { std: "docker" "inspect" "6a64c68cae71da0ba25dfc5505304f8256ce47eaaeca29bca3a70522f877de0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a64c68cae71da0ba25dfc5505304f8256ce47eaaeca29bca3a70522f877de0f", kill_on_drop: false }`
[INFO] [stdout] 6a64c68cae71da0ba25dfc5505304f8256ce47eaaeca29bca3a70522f877de0f