[INFO] fetching crate minigrep_echnobas 0.1.0... [INFO] testing minigrep_echnobas-0.1.0 against beta-2022-02-22 for beta-1.60-1 [INFO] extracting crate minigrep_echnobas 0.1.0 into /workspace/builds/worker-13/source [INFO] validating manifest of crates.io crate minigrep_echnobas 0.1.0 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 crates.io crate minigrep_echnobas 0.1.0 [INFO] finished tweaking crates.io crate minigrep_echnobas 0.1.0 [INFO] tweaked toml for crates.io crate minigrep_echnobas 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate crates.io crate minigrep_echnobas 0.1.0 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] Downloading crates ... [INFO] [stderr] Downloaded utf8-ranges v1.0.4 [INFO] [stderr] Downloaded thread_local v0.3.6 [INFO] [stderr] Downloaded memchr v2.3.3 [INFO] [stderr] Downloaded aho-corasick v0.6.10 [INFO] [stderr] Downloaded regex-syntax v0.5.6 [INFO] [stderr] Downloaded ucd-util v0.1.8 [INFO] [stderr] Downloaded regex v0.2.11 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] bcb88dcb261c7ce12ec0892216db320eeee017cb456495992e34d1cd0d98efbb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "bcb88dcb261c7ce12ec0892216db320eeee017cb456495992e34d1cd0d98efbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bcb88dcb261c7ce12ec0892216db320eeee017cb456495992e34d1cd0d98efbb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bcb88dcb261c7ce12ec0892216db320eeee017cb456495992e34d1cd0d98efbb", kill_on_drop: false }` [INFO] [stdout] bcb88dcb261c7ce12ec0892216db320eeee017cb456495992e34d1cd0d98efbb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 8737dcbedf4fff560cc092f6d7a61f5f0f21ce44967d14253a5c0d23d6da4142 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8737dcbedf4fff560cc092f6d7a61f5f0f21ce44967d14253a5c0d23d6da4142", kill_on_drop: false }` [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling minigrep_echnobas v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `matching` is never read [INFO] [stdout] --> src/lib.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut matching = Vec::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `matching` is never read [INFO] [stdout] --> src/lib.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut matching = Vec::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.67s [INFO] running `Command { std: "docker" "inspect" "8737dcbedf4fff560cc092f6d7a61f5f0f21ce44967d14253a5c0d23d6da4142", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8737dcbedf4fff560cc092f6d7a61f5f0f21ce44967d14253a5c0d23d6da4142", kill_on_drop: false }` [INFO] [stdout] 8737dcbedf4fff560cc092f6d7a61f5f0f21ce44967d14253a5c0d23d6da4142 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] ee17ae1d208dff717f33a4c46bbc56506345ab5e6c7ce01c19e27800d3cd4eb1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ee17ae1d208dff717f33a4c46bbc56506345ab5e6c7ce01c19e27800d3cd4eb1", kill_on_drop: false }` [INFO] [stderr] Compiling minigrep_echnobas v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `matching` is never read [INFO] [stdout] --> src/lib.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut matching = Vec::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `matching` is never read [INFO] [stdout] --> src/lib.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut matching = Vec::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `matching` is never read [INFO] [stdout] --> src/lib.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut matching = Vec::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `Command { std: "docker" "inspect" "ee17ae1d208dff717f33a4c46bbc56506345ab5e6c7ce01c19e27800d3cd4eb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee17ae1d208dff717f33a4c46bbc56506345ab5e6c7ce01c19e27800d3cd4eb1", kill_on_drop: false }` [INFO] [stdout] ee17ae1d208dff717f33a4c46bbc56506345ab5e6c7ce01c19e27800d3cd4eb1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] cf2619fec112de1b44a36c01a652a0c36e3cf1fbc8bbd901b787fb557d382cb1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "cf2619fec112de1b44a36c01a652a0c36e3cf1fbc8bbd901b787fb557d382cb1", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `matching` is never read [INFO] [stderr] --> src/lib.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut matching = Vec::new(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: `minigrep_echnobas` (lib) generated 1 warning [INFO] [stderr] warning: `minigrep_echnobas` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `minigrep_echnobas` (bin "minigrep_echnobas" test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/minigrep_echnobas-fb32d770567eef4a) [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 (/opt/rustwide/target/debug/deps/minigrep_echnobas-6754ff3d8cf4007e) [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 minigrep_echnobas [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" "cf2619fec112de1b44a36c01a652a0c36e3cf1fbc8bbd901b787fb557d382cb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf2619fec112de1b44a36c01a652a0c36e3cf1fbc8bbd901b787fb557d382cb1", kill_on_drop: false }` [INFO] [stdout] cf2619fec112de1b44a36c01a652a0c36e3cf1fbc8bbd901b787fb557d382cb1