[INFO] cloning repository https://github.com/11MK/100-exercises-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/11MK/100-exercises-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F11MK%2F100-exercises-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F11MK%2F100-exercises-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e7da6766b4d1615f764cae237f14bfa65c86c44
[INFO] checking 11MK/100-exercises-rust against master#f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F11MK%2F100-exercises-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/11MK/100-exercises-rust
[INFO] finished tweaking git repo https://github.com/11MK/100-exercises-rust
[INFO] tweaked toml for git repo https://github.com/11MK/100-exercises-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/11MK/100-exercises-rust on toolchain f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/11MK/100-exercises-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.82
[INFO] [stderr]   Downloaded anyhow v1.0.83
[INFO] [stderr]   Downloaded syn v2.0.63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c47cc3d7fb2f2d82e95b576223c447c6af2eac0bde7e106245ee681bac57bb33
[INFO] running `Command { std: "docker" "start" "-a" "c47cc3d7fb2f2d82e95b576223c447c6af2eac0bde7e106245ee681bac57bb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c47cc3d7fb2f2d82e95b576223c447c6af2eac0bde7e106245ee681bac57bb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c47cc3d7fb2f2d82e95b576223c447c6af2eac0bde7e106245ee681bac57bb33", kill_on_drop: false }`
[INFO] [stdout] c47cc3d7fb2f2d82e95b576223c447c6af2eac0bde7e106245ee681bac57bb33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ba23415998bc5ee6a18082ebd1a926ecd3ef3d4dd5fedb073f78ee0a062b4cd
[INFO] running `Command { std: "docker" "start" "-a" "1ba23415998bc5ee6a18082ebd1a926ecd3ef3d4dd5fedb073f78ee0a062b4cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/helpers/common)
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]     Checking outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/13_outro)
[INFO] [stderr]     Checking outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro)
[INFO] [stderr]     Checking drop v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/12_drop)
[INFO] [stderr]     Checking leaking v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/03_leak)
[INFO] [stderr]     Checking overloading v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/03_operator_overloading)
[INFO] [stderr]     Checking from v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/08_from)
[INFO] [stderr]     Checking sized v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/07_sized)
[INFO] [stderr]     Checking if_else v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/03_if_else)
[INFO] [stderr]     Checking for_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/07_for)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/06_ownership)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> exercises/07_threads/03_leak/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> exercises/07_threads/03_leak/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking trait_ v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/01_trait)
[INFO] [stdout] error[E0277]: the trait bound `WrappingU32: From<{integer}>` is not satisfied
[INFO] [stdout]  --> exercises/04_traits/08_from/src/lib.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let wrapping: WrappingU32 = 42.into();
[INFO] [stdout]   |                                    ^^^^ unsatisfied trait bound
[INFO] [stdout]   |
[INFO] [stdout] help: the trait `From<{integer}>` is not implemented for `WrappingU32`
[INFO] [stdout]  --> exercises/04_traits/08_from/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct WrappingU32 {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: required for `{integer}` to implement `Into<WrappingU32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stdout]  --> exercises/04_traits/07_sized/src/lib.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     std::mem::size_of::<str>();
[INFO] [stdout]   |                         ^^^ doesn't have a size known at compile-time
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Sized` is not implemented for `str`
[INFO] [stdout] note: required by an implicit `Sized` bound in `std::mem::size_of`
[INFO] [stdout]  --> /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/mem/mod.rs:335:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> exercises/04_traits/08_from/src/lib.rs:9:38
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let wrapping = WrappingU32::from(42);
[INFO] [stdout]   |                    ----------------- ^^ expected `WrappingU32`, found integer
[INFO] [stdout]   |                    |
[INFO] [stdout]   |                    arguments to this function are incorrect
[INFO] [stdout]   |
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]  --> /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/convert/mod.rs:592:8
[INFO] [stdout] help: try wrapping the expression in `WrappingU32`
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let wrapping = WrappingU32::from(WrappingU32 { value: 42 });
[INFO] [stdout]   |                                      ++++++++++++++++++++    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> exercises/04_traits/12_drop/src/lib.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> exercises/02_basic_calculator/03_if_else/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_even(n: u32) -> bool {
[INFO] [stdout]   |            ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_even` is never used
[INFO] [stdout]  --> exercises/02_basic_calculator/03_if_else/src/lib.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_even(n: u32) -> bool {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `from` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DropBomb`
[INFO] [stdout]   --> exercises/04_traits/12_drop/src/lib.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let bomb = DropBomb::new();
[INFO] [stdout]    |                    ^^^^^^^^ use of undeclared type `DropBomb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sized` (lib test) due to 1 previous error
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DropBomb`
[INFO] [stdout]   --> exercises/04_traits/12_drop/src/lib.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut bomb = DropBomb::new();
[INFO] [stdout]    |                        ^^^^^^^^ use of undeclared type `DropBomb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> exercises/02_basic_calculator/07_for/src/lib.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn factorial(n: u32) -> u32 {
[INFO] [stdout]   |                  ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `eq`
[INFO] [stdout]   --> exercises/04_traits/03_operator_overloading/src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl PartialEq for Ticket {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ missing `eq` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `fn eq(&self, _: &Ticket) -> bool { todo!() }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `eq`
[INFO] [stdout]   --> exercises/04_traits/03_operator_overloading/src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl PartialEq for Ticket {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ missing `eq` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `fn eq(&self, _: &Ticket) -> bool { todo!() }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `outro_03::SaturatingU16`
[INFO] [stdout]  --> exercises/04_traits/13_outro/tests/integration.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use outro_03::SaturatingU16;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^ no `SaturatingU16` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> exercises/04_traits/01_trait/src/lib.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `outro_02::Order`
[INFO] [stdout]  --> exercises/03_ticket_v1/12_outro/tests/integration.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use outro_02::Order;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `Order` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `is_even` found for type `{integer}` in the current scope
[INFO] [stdout]   --> exercises/04_traits/01_trait/src/lib.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |         assert!(42.is_even());
[INFO] [stdout]    |                    ^^^^^^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `is_even` found for type `{integer}` in the current scope
[INFO] [stdout]   --> exercises/04_traits/01_trait/src/lib.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 |         assert!(!43.is_even());
[INFO] [stdout]    |                     ^^^^^^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `is_even` found for type `{integer}` in the current scope
[INFO] [stdout]   --> exercises/04_traits/01_trait/src/lib.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |         assert!(42.is_even());
[INFO] [stdout]    |                    ^^^^^^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `is_even` found for type `{integer}` in the current scope
[INFO] [stdout]   --> exercises/04_traits/01_trait/src/lib.rs:19:21
[INFO] [stdout]    |
[INFO] [stdout] 19 |         assert!(!43.is_even());
[INFO] [stdout]    |                     ^^^^^^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `outro_03` (test "integration") due to 1 previous error
[INFO] [stdout] error[E0599]: no method named `is_even` found for type `{integer}` in the current scope
[INFO] [stdout]   --> exercises/04_traits/01_trait/src/lib.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |         assert!(0.is_even());
[INFO] [stdout]    |                   ^^^^^^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `is_even` found for type `{integer}` in the current scope
[INFO] [stdout]   --> exercises/04_traits/01_trait/src/lib.rs:21:23
[INFO] [stdout]    |
[INFO] [stdout] 21 |         assert!(!(-1).is_even());
[INFO] [stdout]    |                       ^^^^^^^ method not found in `{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `outro_02` (test "integration") due to 1 previous error
[INFO] [stderr] error: could not compile `trait_` (lib test) due to 6 previous errors; 1 warning emitted
[INFO] [stderr] error: could not compile `overloading` (lib test) due to 1 previous error
[INFO] [stderr] error: could not compile `overloading` (lib) due to 1 previous error
[INFO] [stderr] error: could not compile `drop` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1ba23415998bc5ee6a18082ebd1a926ecd3ef3d4dd5fedb073f78ee0a062b4cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba23415998bc5ee6a18082ebd1a926ecd3ef3d4dd5fedb073f78ee0a062b4cd", kill_on_drop: false }`
[INFO] [stdout] 1ba23415998bc5ee6a18082ebd1a926ecd3ef3d4dd5fedb073f78ee0a062b4cd
