[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 beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcorocn%2Frust_nlp100" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/corocn/rust_nlp100 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-26/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: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afcb284ee2d3f5f9fb7f00514168b93382b5dd3648f2ddadc1bb77eca4849cfb
[INFO] running `Command { std: "docker" "start" "-a" "afcb284ee2d3f5f9fb7f00514168b93382b5dd3648f2ddadc1bb77eca4849cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afcb284ee2d3f5f9fb7f00514168b93382b5dd3648f2ddadc1bb77eca4849cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afcb284ee2d3f5f9fb7f00514168b93382b5dd3648f2ddadc1bb77eca4849cfb", kill_on_drop: false }`
[INFO] [stdout] afcb284ee2d3f5f9fb7f00514168b93382b5dd3648f2ddadc1bb77eca4849cfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28501bd1dd5c4284d4981fc197da1226c1ac44050e6ab26763e5efffa37fe978
[INFO] running `Command { std: "docker" "start" "-a" "28501bd1dd5c4284d4981fc197da1226c1ac44050e6ab26763e5efffa37fe978", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 is never used: `p000`
[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 is never used: `p001`
[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 is never used: `p002`
[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 is never used: `p003`
[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 is never used: `p004`
[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 is never used: `p005`
[INFO] [stdout]    --> src/chapter1.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn p005() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "28501bd1dd5c4284d4981fc197da1226c1ac44050e6ab26763e5efffa37fe978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28501bd1dd5c4284d4981fc197da1226c1ac44050e6ab26763e5efffa37fe978", kill_on_drop: false }`
[INFO] [stdout] 28501bd1dd5c4284d4981fc197da1226c1ac44050e6ab26763e5efffa37fe978
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 432e11b17cace63c66c214ffac9dd871174f8cfd03b0a252177970a0b9de5448
[INFO] running `Command { std: "docker" "start" "-a" "432e11b17cace63c66c214ffac9dd871174f8cfd03b0a252177970a0b9de5448", 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 is never used: `p000`
[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 is never used: `p001`
[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 is never used: `p002`
[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 is never used: `p003`
[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 is never used: `p004`
[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 is never used: `p005`
[INFO] [stdout]    --> src/chapter1.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn p005() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "432e11b17cace63c66c214ffac9dd871174f8cfd03b0a252177970a0b9de5448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "432e11b17cace63c66c214ffac9dd871174f8cfd03b0a252177970a0b9de5448", kill_on_drop: false }`
[INFO] [stdout] 432e11b17cace63c66c214ffac9dd871174f8cfd03b0a252177970a0b9de5448
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee3b490e63f3b2437913447cd12e4ddc1af701057d1f6b9dcdc3354d97177280
[INFO] running `Command { std: "docker" "start" "-a" "ee3b490e63f3b2437913447cd12e4ddc1af701057d1f6b9dcdc3354d97177280", 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 is never used: `p000`
[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 is never used: `p001`
[INFO] [stderr]   --> src/chapter1.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn p001() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `p002`
[INFO] [stderr]   --> src/chapter1.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn p002() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `p003`
[INFO] [stderr]   --> src/chapter1.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn p003() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `p004`
[INFO] [stderr]   --> src/chapter1.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn p004() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `p005`
[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
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_nlp100-575cd5eeb278edb4)
[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" "ee3b490e63f3b2437913447cd12e4ddc1af701057d1f6b9dcdc3354d97177280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee3b490e63f3b2437913447cd12e4ddc1af701057d1f6b9dcdc3354d97177280", kill_on_drop: false }`
[INFO] [stdout] ee3b490e63f3b2437913447cd12e4ddc1af701057d1f6b9dcdc3354d97177280