[INFO] cloning repository https://github.com/codeandplay/rust_in_action_examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codeandplay/rust_in_action_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeandplay%2Frust_in_action_examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeandplay%2Frust_in_action_examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eeb4d1a40dd3445150dec6122f9a2f2011da65ae
[INFO] checking codeandplay/rust_in_action_examples against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodeandplay%2Frust_in_action_examples" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/codeandplay/rust_in_action_examples on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/codeandplay/rust_in_action_examples
[INFO] finished tweaking git repo https://github.com/codeandplay/rust_in_action_examples
[INFO] tweaked toml for git repo https://github.com/codeandplay/rust_in_action_examples written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/codeandplay/rust_in_action_examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c28f42eb918e003436ef9aa449de6a625fdb9f155a3c7d7b7c97788389fc912
[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" "5c28f42eb918e003436ef9aa449de6a625fdb9f155a3c7d7b7c97788389fc912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c28f42eb918e003436ef9aa449de6a625fdb9f155a3c7d7b7c97788389fc912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c28f42eb918e003436ef9aa449de6a625fdb9f155a3c7d7b7c97788389fc912", kill_on_drop: false }`
[INFO] [stdout] 5c28f42eb918e003436ef9aa449de6a625fdb9f155a3c7d7b7c97788389fc912
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--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] f194d92592d6f34f0596884f1913d1c17056b9eaabbbef69155df7a86387de89
[INFO] running `Command { std: "docker" "start" "-a" "f194d92592d6f34f0596884f1913d1c17056b9eaabbbef69155df7a86387de89", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]  --> src/bin/2_4_float_number_nan.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 |     assert!(f32::NAN == f32::NAN, false);
[INFO] [stdout]   |                                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]   = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]   |
[INFO] [stdout] 2 |     assert!(f32::NAN == f32::NAN, "{}", false);
[INFO] [stdout]   |                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `needle`
[INFO] [stdout]  --> src/bin/2_14_match.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let needle = 42;
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_needle`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sat_id`
[INFO] [stdout]   --> src/bin/4_21_implement_copy_for_type.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn check_status(sat_id: CubeSat) -> StatusMessage {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_21_implement_copy_for_type.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_21_implement_copy_for_type.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: borrow of moved value: `grains`
[INFO] [stdout]   --> src/bin/1_6_dangling_pointer.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut grains: Vec<Cereal> = vec![];
[INFO] [stdout]    |         ---------- move occurs because `grains` has type `Vec<Cereal>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     drop(grains);
[INFO] [stdout]    |          ------ value moved here
[INFO] [stdout] 17 | 
[INFO] [stdout] 18 |     println!("{:?}", grains);
[INFO] [stdout]    |                      ^^^^^^ value borrowed here after move
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `example`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `sat_id`
[INFO] [stdout]   --> src/bin/4_20_derive_copy_for_type.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn check_status(sat_id: CubeSat) -> StatusMessage {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_20_derive_copy_for_type.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_20_derive_copy_for_type.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `dead_close`
[INFO] [stdout]  --> src/bin/3_22_implementing_display.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![allow(dead_close)]
[INFO] [stdout]   |          ^^^^^^^^^^ help: did you mean: `dead_code`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sat_id`
[INFO] [stdout]   --> src/bin/4_4_ownership_moved.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn check_status(sat_id: CubeSat) -> StatusMessage {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sat_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_4_ownership_moved.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_status`
[INFO] [stdout]   --> src/bin/4_4_ownership_moved.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `sat_a`
[INFO] [stdout]   --> src/bin/4_4_ownership_moved.rs:19:33
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let sat_a = CubeSat { id: 0 };
[INFO] [stdout]    |         ----- move occurs because `sat_a` has type `CubeSat`, which does not implement the `Copy` trait
[INFO] [stdout] 17 | 
[INFO] [stdout] 18 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |                                 ----- value moved here
[INFO] [stdout] 19 |     let a_status = check_status(sat_a);
[INFO] [stdout]    |                                 ^^^^^ value used here after move
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `save_to`
[INFO] [stdout]   --> src/bin/3_19_read_trait.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn read(self: &File, save_to: &mut Vec<u8>) -> Result<usize, String> {
[INFO] [stdout]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_save_to`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Open`
[INFO] [stdout]   --> src/bin/3_22_implementing_display.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Open,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f194d92592d6f34f0596884f1913d1c17056b9eaabbbef69155df7a86387de89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f194d92592d6f34f0596884f1913d1c17056b9eaabbbef69155df7a86387de89", kill_on_drop: false }`
[INFO] [stdout] f194d92592d6f34f0596884f1913d1c17056b9eaabbbef69155df7a86387de89