[INFO] updating cached repository Reignbeaux/tower-of-hanoi
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Reignbeaux/tower-of-hanoi
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Reignbeaux/tower-of-hanoi" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Reignbeaux/tower-of-hanoi"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Reignbeaux/tower-of-hanoi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Reignbeaux/tower-of-hanoi" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Reignbeaux/tower-of-hanoi"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Reignbeaux/tower-of-hanoi'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ece4193ed3347c7a1e224c89267694a4d8394125
[INFO] sha for GitHub repo Reignbeaux/tower-of-hanoi: ece4193ed3347c7a1e224c89267694a4d8394125
[INFO] validating manifest of Reignbeaux/tower-of-hanoi on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Reignbeaux/tower-of-hanoi on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Reignbeaux/tower-of-hanoi
[INFO] finished frobbing Reignbeaux/tower-of-hanoi
[INFO] frobbed toml for Reignbeaux/tower-of-hanoi written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Reignbeaux/tower-of-hanoi/Cargo.toml
[INFO] started frobbing Reignbeaux/tower-of-hanoi
[INFO] finished frobbing Reignbeaux/tower-of-hanoi
[INFO] frobbed toml for Reignbeaux/tower-of-hanoi written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Reignbeaux/tower-of-hanoi/Cargo.toml
[INFO] crate Reignbeaux/tower-of-hanoi already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Reignbeaux/tower-of-hanoi/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Reignbeaux/tower-of-hanoi against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-2/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Reignbeaux/tower-of-hanoi:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 133a28d6df1a656f4c1dd4aa4b6c8410534d8ab2509145fceb85d33a61a21af9
[INFO] running `"docker" "start" "-a" "133a28d6df1a656f4c1dd4aa4b6c8410534d8ab2509145fceb85d33a61a21af9"`
[INFO] [stderr]     Checking tower_of_hanoi v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `unstable`
[INFO] [stderr]  --> src/main.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[allow(unstable)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `unstable`
[INFO] [stderr]  --> src/main.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[allow(unstable)]
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::old_io;
[INFO] [stderr]   |     ^^^^^^^^^^^ no `old_io` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/main.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::old_io::File;
[INFO] [stderr]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::time::duration`
[INFO] [stderr]  --> src/main.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time::duration::Duration;
[INFO] [stderr]   |                ^^^^^^^^ could not find `duration` in `time`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::num::Float`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^ no `Float` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::old_io;
[INFO] [stderr]   |     ^^^^^^^^^^^ no `old_io` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/main.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::old_io::File;
[INFO] [stderr]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::time::duration`
[INFO] [stderr]  --> src/main.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time::duration::Duration;
[INFO] [stderr]   |                ^^^^^^^^ could not find `duration` in `time`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::num::Float`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^ no `Float` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]   --> src/main.rs:74:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let mut f = File::create(&Path::new("moves"));
[INFO] [stderr]    |                               ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]   --> src/main.rs:74:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let mut f = File::create(&Path::new("moves"));
[INFO] [stderr]    |                               ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `args` in module `os`
[INFO] [stderr]   --> src/main.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let args = os::args();
[INFO] [stderr]    |                    ^^^^ not found in `os`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 4  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `JoinGuard` in module `std::thread`
[INFO] [stderr]    --> src/main.rs:112:38
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let mut guard1: std::thread::JoinGuard<Vec<(i32, i32)>>;
[INFO] [stderr]     |                                      ^^^^^^^^^ not found in `std::thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `JoinGuard` in module `std::thread`
[INFO] [stderr]    --> src/main.rs:113:38
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let mut guard2: std::thread::JoinGuard<Vec<(i32, i32)>>; 
[INFO] [stderr]     |                                      ^^^^^^^^^ not found in `std::thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `JoinGuard` in module `std::thread`
[INFO] [stderr]    --> src/main.rs:147:100
[INFO] [stderr]     |
[INFO] [stderr] 147 | fn start_thread<'a>(height: i32, sequence: (i32, i32, i32), threads_to_start: i32) -> std::thread::JoinGuard<'a, Vec<(i32, i32)>> {
[INFO] [stderr]     |                                                                                                    ^^^^^^^^^ not found in `std::thread`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::duration::Duration`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time::duration::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] error[E0425]: cannot find function `args` in module `os`
[INFO] [stderr]   --> src/main.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let args = os::args();
[INFO] [stderr]    |                    ^^^^ not found in `os`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 4  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `JoinGuard` in module `std::thread`
[INFO] [stderr]    --> src/main.rs:112:38
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let mut guard1: std::thread::JoinGuard<Vec<(i32, i32)>>;
[INFO] [stderr]     |                                      ^^^^^^^^^ not found in `std::thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `JoinGuard` in module `std::thread`
[INFO] [stderr]    --> src/main.rs:113:38
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let mut guard2: std::thread::JoinGuard<Vec<(i32, i32)>>; 
[INFO] [stderr]     |                                      ^^^^^^^^^ not found in `std::thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `JoinGuard` in module `std::thread`
[INFO] [stderr]    --> src/main.rs:147:100
[INFO] [stderr]     |
[INFO] [stderr] 147 | fn start_thread<'a>(height: i32, sequence: (i32, i32, i32), threads_to_start: i32) -> std::thread::JoinGuard<'a, Vec<(i32, i32)>> {
[INFO] [stderr]     |                                                                                                    ^^^^^^^^^ not found in `std::thread`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::duration::Duration`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::time::duration::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::Float`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::Float`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/main.rs:80:38
[INFO] [stderr]    |
[INFO] [stderr] 80 |         f.write_str(from.to_string().as_slice());
[INFO] [stderr]    |                                      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/main.rs:80:38
[INFO] [stderr]    |
[INFO] [stderr] 80 |         f.write_str(from.to_string().as_slice());
[INFO] [stderr]    |                                      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/main.rs:82:36
[INFO] [stderr]    |
[INFO] [stderr] 82 |         f.write_str(to.to_string().as_slice());
[INFO] [stderr]    |                                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/main.rs:82:36
[INFO] [stderr]    |
[INFO] [stderr] 82 |         f.write_str(to.to_string().as_slice());
[INFO] [stderr]    |                                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `push_all` found for type `std::vec::Vec<(i32, i32)>` in the current scope
[INFO] [stderr]    --> src/main.rs:139:15
[INFO] [stderr]     |
[INFO] [stderr] 139 |         moves.push_all(moves1.as_slice());
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `push_all` found for type `std::vec::Vec<(i32, i32)>` in the current scope
[INFO] [stderr]    --> src/main.rs:141:15
[INFO] [stderr]     |
[INFO] [stderr] 141 |         moves.push_all(moves2.as_slice());
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `scoped` found for type `std::thread::Thread` in the current scope
[INFO] [stderr]    --> src/main.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |     Thread::scoped(move || {
[INFO] [stderr]     |     --------^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     function or associated item not found in `std::thread::Thread`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors occurred: E0412, E0425, E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error[E0599]: no method named `push_all` found for type `std::vec::Vec<(i32, i32)>` in the current scope
[INFO] [stderr]    --> src/main.rs:139:15
[INFO] [stderr]     |
[INFO] [stderr] 139 |         moves.push_all(moves1.as_slice());
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `push_all` found for type `std::vec::Vec<(i32, i32)>` in the current scope
[INFO] [stderr]    --> src/main.rs:141:15
[INFO] [stderr]     |
[INFO] [stderr] 141 |         moves.push_all(moves2.as_slice());
[INFO] [stderr]     |               ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `scoped` found for type `std::thread::Thread` in the current scope
[INFO] [stderr]    --> src/main.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |     Thread::scoped(move || {
[INFO] [stderr]     |     --------^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     function or associated item not found in `std::thread::Thread`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors occurred: E0412, E0425, E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: Could not compile `tower_of_hanoi`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `tower_of_hanoi`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "133a28d6df1a656f4c1dd4aa4b6c8410534d8ab2509145fceb85d33a61a21af9"`
[INFO] running `"docker" "rm" "-f" "133a28d6df1a656f4c1dd4aa4b6c8410534d8ab2509145fceb85d33a61a21af9"`
[INFO] [stdout] 133a28d6df1a656f4c1dd4aa4b6c8410534d8ab2509145fceb85d33a61a21af9