[INFO] updating cached repository ljcusack/rust-playpen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ljcusack/rust-playpen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ljcusack/rust-playpen" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ljcusack/rust-playpen"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ljcusack/rust-playpen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ljcusack/rust-playpen" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ljcusack/rust-playpen"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ljcusack/rust-playpen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] de9e77d2d9a207a506493bc2d739ac4e070c4465
[INFO] sha for GitHub repo ljcusack/rust-playpen: de9e77d2d9a207a506493bc2d739ac4e070c4465
[INFO] validating manifest of ljcusack/rust-playpen on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ljcusack/rust-playpen on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ljcusack/rust-playpen
[INFO] finished frobbing ljcusack/rust-playpen
[INFO] frobbed toml for ljcusack/rust-playpen written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ljcusack/rust-playpen/Cargo.toml
[INFO] started frobbing ljcusack/rust-playpen
[INFO] finished frobbing ljcusack/rust-playpen
[INFO] frobbed toml for ljcusack/rust-playpen written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ljcusack/rust-playpen/Cargo.toml
[INFO] crate ljcusack/rust-playpen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking ljcusack/rust-playpen against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-3/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ljcusack/rust-playpen:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f1a6b2baf55a07360c8398f3713abcf5488b795cd6575b93b963e90cb4342d9f
[INFO] running `"docker" "start" "-a" "f1a6b2baf55a07360c8398f3713abcf5488b795cd6575b93b963e90cb4342d9f"`
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/bin/memory3.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `fn(i32, i32) -> i32 {add}` doesn't implement `std::fmt::Debug`
[INFO] [stderr]   --> src/bin/fn_pointers.rs:12:32
[INFO] [stderr]    |
[INFO] [stderr] 12 |    println!("fn_ptr2: \t{:?}", fn_ptr2);
[INFO] [stderr]    |                                ^^^^^^^ `fn(i32, i32) -> i32 {add}` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Debug` is not implemented for `fn(i32, i32) -> i32 {add}`
[INFO] [stderr]    = note: required by `std::fmt::Debug::fmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `hello_world`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: field is never used: `size`
[INFO] [stderr]  --> src/bin/list.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     size: i32,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `head`
[INFO] [stderr]  --> src/bin/list.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     head: Link<T>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `item`
[INFO] [stderr]  --> src/bin/list.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 |    item: T,
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `next`
[INFO] [stderr]   --> src/bin/list.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 |    next: Link<T>,
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Morning`
[INFO] [stderr]   --> src/bin/match.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 |    Morning(i32),
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Afternoon`
[INFO] [stderr]   --> src/bin/match.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 |    Afternoon(i32),
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `size`
[INFO] [stderr]  --> src/bin/list.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     size: i32,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `head`
[INFO] [stderr]  --> src/bin/list.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     head: Link<T>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `item`
[INFO] [stderr]  --> src/bin/list.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 |    item: T,
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `next`
[INFO] [stderr]   --> src/bin/list.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 |    next: Link<T>,
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f1a6b2baf55a07360c8398f3713abcf5488b795cd6575b93b963e90cb4342d9f"`
[INFO] running `"docker" "rm" "-f" "f1a6b2baf55a07360c8398f3713abcf5488b795cd6575b93b963e90cb4342d9f"`
[INFO] [stdout] f1a6b2baf55a07360c8398f3713abcf5488b795cd6575b93b963e90cb4342d9f