[INFO] fetching crate ido 0.0.3...
[INFO] testing ido-0.0.3 against 1.52.1 for beta-1.52-2
[INFO] extracting crate ido 0.0.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ido 0.0.3 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ido 0.0.3
[INFO] finished tweaking crates.io crate ido 0.0.3
[INFO] tweaked toml for crates.io crate ido 0.0.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate ido 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97cfd20a685479e9a3fc8f6a797816afe45dcabaaa933a4f7e827c17adc6e06b
[INFO] running `Command { std: "docker" "start" "-a" "97cfd20a685479e9a3fc8f6a797816afe45dcabaaa933a4f7e827c17adc6e06b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97cfd20a685479e9a3fc8f6a797816afe45dcabaaa933a4f7e827c17adc6e06b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97cfd20a685479e9a3fc8f6a797816afe45dcabaaa933a4f7e827c17adc6e06b", kill_on_drop: false }`
[INFO] [stdout] 97cfd20a685479e9a3fc8f6a797816afe45dcabaaa933a4f7e827c17adc6e06b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 464fa939494eaacf7ac40dab21bc65baf32ab1c3f7102722529198a57e71d68c
[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" "464fa939494eaacf7ac40dab21bc65baf32ab1c3f7102722529198a57e71d68c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling xi-unicode v0.2.1
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling directories v3.0.1
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling ahash v0.4.5
[INFO] [stderr]    Compiling ahash v0.2.18
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde-hjson v0.9.1
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling enum-map v0.6.3
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.4.4
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]    Compiling enumset v0.4.5
[INFO] [stderr]    Compiling enumset v1.0.1
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling cursive v0.14.1
[INFO] [stderr]    Compiling cursive_core v0.1.1
[INFO] [stderr]    Compiling config v0.10.1
[INFO] [stderr]    Compiling cursive_table_view v0.12.0
[INFO] [stderr]    Compiling cursive v0.15.0
[INFO] [stderr]    Compiling ido v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `efficiency_rating`
[INFO] [stdout]    --> src/cursive/task.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn efficiency_rating(s: &mut Cursive)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `finish_task`
[INFO] [stdout]    --> src/cursive/task.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub fn finish_task(s: &mut Cursive) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `on_finish`
[INFO] [stdout]    --> src/cursive.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn on_finish(s: &mut Cursive) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 55s
[INFO] running `Command { std: "docker" "inspect" "464fa939494eaacf7ac40dab21bc65baf32ab1c3f7102722529198a57e71d68c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464fa939494eaacf7ac40dab21bc65baf32ab1c3f7102722529198a57e71d68c", kill_on_drop: false }`
[INFO] [stdout] 464fa939494eaacf7ac40dab21bc65baf32ab1c3f7102722529198a57e71d68c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6584f564b8b47e23557ad58cc6d77e03de1696b11c88b196de9ee20178d43ed
[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" "e6584f564b8b47e23557ad58cc6d77e03de1696b11c88b196de9ee20178d43ed", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `efficiency_rating`
[INFO] [stdout]    --> src/cursive/task.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn efficiency_rating(s: &mut Cursive)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `finish_task`
[INFO] [stdout]    --> src/cursive/task.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub fn finish_task(s: &mut Cursive) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `on_finish`
[INFO] [stdout]    --> src/cursive.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn on_finish(s: &mut Cursive) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ido v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `efficiency_rating`
[INFO] [stdout]    --> src/cursive/task.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn efficiency_rating(s: &mut Cursive)
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `finish_task`
[INFO] [stdout]    --> src/cursive/task.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub fn finish_task(s: &mut Cursive) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `on_finish`
[INFO] [stdout]    --> src/cursive.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn on_finish(s: &mut Cursive) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "e6584f564b8b47e23557ad58cc6d77e03de1696b11c88b196de9ee20178d43ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6584f564b8b47e23557ad58cc6d77e03de1696b11c88b196de9ee20178d43ed", kill_on_drop: false }`
[INFO] [stdout] e6584f564b8b47e23557ad58cc6d77e03de1696b11c88b196de9ee20178d43ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 430f81e23ed28a6aabae381b9eae31afc22190970d19bb7bc9f48327ef3c0f89
[INFO] running `Command { std: "docker" "start" "-a" "430f81e23ed28a6aabae381b9eae31afc22190970d19bb7bc9f48327ef3c0f89", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `efficiency_rating`
[INFO] [stderr]    --> src/cursive/task.rs:119:4
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn efficiency_rating(s: &mut Cursive)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `finish_task`
[INFO] [stderr]    --> src/cursive/task.rs:150:8
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub fn finish_task(s: &mut Cursive) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `on_finish`
[INFO] [stderr]    --> src/cursive.rs:108:4
[INFO] [stderr]     |
[INFO] [stderr] 108 | fn on_finish(s: &mut Cursive) {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `efficiency_rating`
[INFO] [stderr]    --> src/cursive/task.rs:119:4
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn efficiency_rating(s: &mut Cursive)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `finish_task`
[INFO] [stderr]    --> src/cursive/task.rs:150:8
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub fn finish_task(s: &mut Cursive) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `on_finish`
[INFO] [stderr]    --> src/cursive.rs:108:4
[INFO] [stderr]     |
[INFO] [stderr] 108 | fn on_finish(s: &mut Cursive) {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ido-8497445623dddae0)
[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/ido-3f4c54ab704e6610)
[INFO] [stderr]    Doc-tests ido
[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] [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" "430f81e23ed28a6aabae381b9eae31afc22190970d19bb7bc9f48327ef3c0f89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "430f81e23ed28a6aabae381b9eae31afc22190970d19bb7bc9f48327ef3c0f89", kill_on_drop: false }`
[INFO] [stdout] 430f81e23ed28a6aabae381b9eae31afc22190970d19bb7bc9f48327ef3c0f89