[INFO] fetching crate word_counter 0.3.0... [INFO] testing word_counter-0.3.0 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate word_counter 0.3.0 into /workspace/builds/worker-113/source [INFO] validating manifest of crates.io crate word_counter 0.3.0 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate word_counter 0.3.0 [INFO] finished tweaking crates.io crate word_counter 0.3.0 [INFO] tweaked toml for crates.io crate word_counter 0.3.0 written to /workspace/builds/worker-113/source/Cargo.toml [INFO] crate crates.io crate word_counter 0.3.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0afe8fd8e4b5124f80cc45618d77e2b608f89c9be481eb33e16ccc078af3e94b [INFO] running `Command { std: "docker" "start" "-a" "0afe8fd8e4b5124f80cc45618d77e2b608f89c9be481eb33e16ccc078af3e94b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0afe8fd8e4b5124f80cc45618d77e2b608f89c9be481eb33e16ccc078af3e94b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0afe8fd8e4b5124f80cc45618d77e2b608f89c9be481eb33e16ccc078af3e94b", kill_on_drop: false }` [INFO] [stdout] 0afe8fd8e4b5124f80cc45618d77e2b608f89c9be481eb33e16ccc078af3e94b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2244a04b5ec1e95348cfd6d75e2139bf8cda8889e8f5ce3c25c2fb120c837495 [INFO] running `Command { std: "docker" "start" "-a" "2244a04b5ec1e95348cfd6d75e2139bf8cda8889e8f5ce3c25c2fb120c837495", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling encode_unicode v0.3.6 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling bstr v0.2.16 [INFO] [stderr] Compiling csv v1.1.6 [INFO] [stderr] Compiling prettytable-rs v0.8.0 [INFO] [stderr] Compiling structopt-derive v0.4.15 [INFO] [stderr] Compiling structopt v0.3.22 [INFO] [stderr] Compiling word_counter v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `output` [INFO] [stdout] --> src/lib.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | output: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | #[derive(Debug, StructOpt)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.50s [INFO] running `Command { std: "docker" "inspect" "2244a04b5ec1e95348cfd6d75e2139bf8cda8889e8f5ce3c25c2fb120c837495", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2244a04b5ec1e95348cfd6d75e2139bf8cda8889e8f5ce3c25c2fb120c837495", kill_on_drop: false }` [INFO] [stdout] 2244a04b5ec1e95348cfd6d75e2139bf8cda8889e8f5ce3c25c2fb120c837495 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5fff4a6b61b0ebcd39fba0b48258de5479a093254308246c55c6b0f5e418d2e0 [INFO] running `Command { std: "docker" "start" "-a" "5fff4a6b61b0ebcd39fba0b48258de5479a093254308246c55c6b0f5e418d2e0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling word_counter v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `output` [INFO] [stdout] --> src/lib.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | output: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | #[derive(Debug, StructOpt)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `output` [INFO] [stdout] --> src/lib.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | output: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:16:10 [INFO] [stdout] | [INFO] [stdout] 16 | #[derive(Debug, StructOpt)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.73s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/word_counter-10b1c87e1cff8dbd) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/word_counter-54f9fcb14208be03) [INFO] running `Command { std: "docker" "inspect" "5fff4a6b61b0ebcd39fba0b48258de5479a093254308246c55c6b0f5e418d2e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fff4a6b61b0ebcd39fba0b48258de5479a093254308246c55c6b0f5e418d2e0", kill_on_drop: false }` [INFO] [stdout] 5fff4a6b61b0ebcd39fba0b48258de5479a093254308246c55c6b0f5e418d2e0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2a588b69082bd42ef39184cd1a5751af733bf4be30c308d66406a519b88dd158 [INFO] running `Command { std: "docker" "start" "-a" "2a588b69082bd42ef39184cd1a5751af733bf4be30c308d66406a519b88dd158", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: field is never read: `output` [INFO] [stderr] --> src/lib.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | output: Option, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/lib.rs:16:10 [INFO] [stderr] | [INFO] [stderr] 16 | #[derive(Debug, StructOpt)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `word_counter` (lib) generated 1 warning [INFO] [stderr] warning: `word_counter` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.13s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/word_counter-10b1c87e1cff8dbd) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test tests::it_gets_max_word ... ok [INFO] [stdout] test tests::it_gets_searched_word ... ok [INFO] [stdout] test tests::it_gets_word_count ... ok [INFO] [stdout] test tests::it_sorts_hashmap ... 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] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/word_counter-54f9fcb14208be03) [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 word_counter [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 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2a588b69082bd42ef39184cd1a5751af733bf4be30c308d66406a519b88dd158", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a588b69082bd42ef39184cd1a5751af733bf4be30c308d66406a519b88dd158", kill_on_drop: false }` [INFO] [stdout] 2a588b69082bd42ef39184cd1a5751af733bf4be30c308d66406a519b88dd158