[INFO] cloning repository https://github.com/huwb/learningrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huwb/learningrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwb%2Flearningrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwb%2Flearningrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 419b6eacb02bba0520897cba8888fb5184f3a1b8
[INFO] checking huwb/learningrust against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwb%2Flearningrust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/huwb/learningrust on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/huwb/learningrust
[INFO] finished tweaking git repo https://github.com/huwb/learningrust
[INFO] tweaked toml for git repo https://github.com/huwb/learningrust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/huwb/learningrust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4a66ba418577723434e6f7b357e81d07f246b1124b02143189d9abf8596d151
[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" "b4a66ba418577723434e6f7b357e81d07f246b1124b02143189d9abf8596d151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4a66ba418577723434e6f7b357e81d07f246b1124b02143189d9abf8596d151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4a66ba418577723434e6f7b357e81d07f246b1124b02143189d9abf8596d151", kill_on_drop: false }`
[INFO] [stdout] b4a66ba418577723434e6f7b357e81d07f246b1124b02143189d9abf8596d151
[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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3246c4fecf6064e4113a215ddd0f7b3d4b822d997684e0d48e56e9cd81ed52d
[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" "f3246c4fecf6064e4113a215ddd0f7b3d4b822d997684e0d48e56e9cd81ed52d", kill_on_drop: false }`
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking rand v0.3.19
[INFO] [stderr]     Checking simple-stopwatch v0.1.4
[INFO] [stderr]     Checking learningrust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 |     state: Option<Box<State>>,
[INFO] [stdout]    |                       ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:47:47
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn request_review(self: Box<Self>) -> Box<State>;
[INFO] [stdout]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:48:40
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn approve(self: Box<Self>) -> Box<State>;
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:57:47
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:60:40
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:68:47
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:71:40
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:79:47
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:82:40
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/patterns_chapter.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Some(y @ 1...3) => println!("It's a thricer: {}", y),
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/threadpool.rs:41:20
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub type Job = Box<FnBox + Send>;
[INFO] [stdout]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 |     state: Option<Box<State>>,
[INFO] [stdout]    |                       ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:47:47
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn request_review(self: Box<Self>) -> Box<State>;
[INFO] [stdout]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:48:40
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn approve(self: Box<Self>) -> Box<State>;
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:57:47
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:60:40
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:68:47
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:71:40
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:79:47
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/state_pattern.rs:82:40
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/patterns_chapter.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Some(y @ 1...3) => println!("It's a thricer: {}", y),
[INFO] [stdout]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/threadpool.rs:41:20
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub type Job = Box<FnBox + Send>;
[INFO] [stdout]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "f3246c4fecf6064e4113a215ddd0f7b3d4b822d997684e0d48e56e9cd81ed52d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3246c4fecf6064e4113a215ddd0f7b3d4b822d997684e0d48e56e9cd81ed52d", kill_on_drop: false }`
[INFO] [stdout] f3246c4fecf6064e4113a215ddd0f7b3d4b822d997684e0d48e56e9cd81ed52d