[INFO] fetching crate ido 0.0.3...
[INFO] testing ido-0.0.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ido 0.0.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ido 0.0.3 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-1/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" "+1.49.0" "fetch" "--locked" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e7b550884dd05415e0c7750839b877c5636f59345b4d09c27dbba710f7f7f3f
[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" "7e7b550884dd05415e0c7750839b877c5636f59345b4d09c27dbba710f7f7f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e7b550884dd05415e0c7750839b877c5636f59345b4d09c27dbba710f7f7f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7b550884dd05415e0c7750839b877c5636f59345b4d09c27dbba710f7f7f3f", kill_on_drop: false }`
[INFO] [stdout] 7e7b550884dd05415e0c7750839b877c5636f59345b4d09c27dbba710f7f7f3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] 4fc35ac40c5dacf4a1b5cef5f681e1f252c01cbc4f1a1925628b4ff477d19d25
[INFO] running `Command { std: "docker" "start" "-a" "4fc35ac40c5dacf4a1b5cef5f681e1f252c01cbc4f1a1925628b4ff477d19d25", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling arc-swap v0.4.7
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling xi-unicode v0.2.1
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling rust-ini v0.13.0
[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 v0.3.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling serde_test v0.8.23
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling time v0.1.44
[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 quote v1.0.7
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling directories v3.0.1
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling ahash v0.4.5
[INFO] [stderr]    Compiling ahash v0.2.18
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling serde-hjson v0.9.1
[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 darling v0.10.2
[INFO] [stderr]    Compiling enum-map v0.6.3
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]    Compiling enumset_derive v0.4.4
[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_yaml v0.8.13
[INFO] [stderr]    Compiling cursive_core v0.1.1
[INFO] [stderr]    Compiling cursive v0.14.1
[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 2m 01s
[INFO] running `Command { std: "docker" "inspect" "4fc35ac40c5dacf4a1b5cef5f681e1f252c01cbc4f1a1925628b4ff477d19d25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc35ac40c5dacf4a1b5cef5f681e1f252c01cbc4f1a1925628b4ff477d19d25", kill_on_drop: false }`
[INFO] [stdout] 4fc35ac40c5dacf4a1b5cef5f681e1f252c01cbc4f1a1925628b4ff477d19d25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d470b73b5a9492d8eda11e4cbf715181e95b694753f31989bead542ed0c4d3d9
[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" "d470b73b5a9492d8eda11e4cbf715181e95b694753f31989bead542ed0c4d3d9", kill_on_drop: false }`
[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] [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 1.19s
[INFO] running `Command { std: "docker" "inspect" "d470b73b5a9492d8eda11e4cbf715181e95b694753f31989bead542ed0c4d3d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d470b73b5a9492d8eda11e4cbf715181e95b694753f31989bead542ed0c4d3d9", kill_on_drop: false }`
[INFO] [stdout] d470b73b5a9492d8eda11e4cbf715181e95b694753f31989bead542ed0c4d3d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7717b35bfd1fd20d104bc3935fec5360588b2c32158c4aceedaeed6492919a29
[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" "7717b35bfd1fd20d104bc3935fec5360588b2c32158c4aceedaeed6492919a29", 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 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ido-818581a9eabc20b3
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ido-d887d333b08327bd
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ido
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7717b35bfd1fd20d104bc3935fec5360588b2c32158c4aceedaeed6492919a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7717b35bfd1fd20d104bc3935fec5360588b2c32158c4aceedaeed6492919a29", kill_on_drop: false }`
[INFO] [stdout] 7717b35bfd1fd20d104bc3935fec5360588b2c32158c4aceedaeed6492919a29