[INFO] fetching crate ido 0.0.3...
[INFO] checking ido-0.0.3 against beta for pr-78714
[INFO] extracting crate ido 0.0.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ido 0.0.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-8/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" "+beta" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e00d21fa5a57d34a804d271bb34ec40008b35db8a57703920a8c75dc52476c5
[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" "5e00d21fa5a57d34a804d271bb34ec40008b35db8a57703920a8c75dc52476c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e00d21fa5a57d34a804d271bb34ec40008b35db8a57703920a8c75dc52476c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e00d21fa5a57d34a804d271bb34ec40008b35db8a57703920a8c75dc52476c5", kill_on_drop: false }`
[INFO] [stdout] 5e00d21fa5a57d34a804d271bb34ec40008b35db8a57703920a8c75dc52476c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 016fc0146e27e43f94b0aea841dca5c0966e654b7ee0c1b987406f80cebc8b9b
[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" "016fc0146e27e43f94b0aea841dca5c0966e654b7ee0c1b987406f80cebc8b9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking xi-unicode v0.2.1
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking maplit v1.0.2
[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-complex v0.2.4
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking directories v3.0.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking ahash v0.4.5
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.116
[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]     Checking enum-map v0.6.3
[INFO] [stderr]     Checking time-macros v0.1.0
[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]     Checking enumset v0.4.5
[INFO] [stderr]     Checking enumset v1.0.1
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking cursive_core v0.1.1
[INFO] [stderr]     Checking cursive v0.14.1
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking cursive v0.15.0
[INFO] [stderr]     Checking cursive_table_view v0.12.0
[INFO] [stderr]     Checking 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: 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.37s
[INFO] running `Command { std: "docker" "inspect" "016fc0146e27e43f94b0aea841dca5c0966e654b7ee0c1b987406f80cebc8b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "016fc0146e27e43f94b0aea841dca5c0966e654b7ee0c1b987406f80cebc8b9b", kill_on_drop: false }`
[INFO] [stdout] 016fc0146e27e43f94b0aea841dca5c0966e654b7ee0c1b987406f80cebc8b9b