[INFO] fetching crate collum 0.1.0...
[INFO] testing collum-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate collum 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate collum 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate collum 0.1.0
[INFO] tweaked toml for crates.io crate collum 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate collum 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate collum 0.1.0 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 676beea254b5f198e7a5ef58513bd57c051bfc999a17a320c9de075d74664e64
[INFO] running `Command { std: "docker" "start" "-a" "676beea254b5f198e7a5ef58513bd57c051bfc999a17a320c9de075d74664e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "676beea254b5f198e7a5ef58513bd57c051bfc999a17a320c9de075d74664e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "676beea254b5f198e7a5ef58513bd57c051bfc999a17a320c9de075d74664e64", kill_on_drop: false }`
[INFO] [stdout] 676beea254b5f198e7a5ef58513bd57c051bfc999a17a320c9de075d74664e64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 314b0067b87e36d5c02943f20cd7cd0cc79e173f05f0e04166df9f706cb87b0d
[INFO] running `Command { std: "docker" "start" "-a" "314b0067b87e36d5c02943f20cd7cd0cc79e173f05f0e04166df9f706cb87b0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling collum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "314b0067b87e36d5c02943f20cd7cd0cc79e173f05f0e04166df9f706cb87b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314b0067b87e36d5c02943f20cd7cd0cc79e173f05f0e04166df9f706cb87b0d", kill_on_drop: false }`
[INFO] [stdout] 314b0067b87e36d5c02943f20cd7cd0cc79e173f05f0e04166df9f706cb87b0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94c5cef7d8f5d96875278c73381131218c7b1fc7ce99edb8c0a895de016fc52d
[INFO] running `Command { std: "docker" "start" "-a" "94c5cef7d8f5d96875278c73381131218c7b1fc7ce99edb8c0a895de016fc52d", kill_on_drop: false }`
[INFO] [stderr]    Compiling collum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `collum_derive`
[INFO] [stdout]   --> src/lib.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     use collum_derive::{Collum, Sized};
[INFO] [stdout]    |         ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `collum_derive`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `collum_derive`, use `cargo add collum_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `collum` in this scope
[INFO] [stdout]   --> src/lib.rs:94:11
[INFO] [stdout]    |
[INFO] [stdout] 94 |         #[collum(endian = "big")]
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `collum` is imported here, but it is a module, not an attribute
[INFO] [stdout]   --> src/lib.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     extern crate self as collum;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `collum_derive`
[INFO] [stdout]  --> examples/u2.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use collum_derive::{Collum, Sized};
[INFO] [stdout]   |     ^^^^^^^^^^^^^ use of unresolved module or unlinked crate `collum_derive`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `collum_derive`, use `cargo add collum_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `bits` found for struct `UdpHeader` in the current scope
[INFO] [stdout]    --> src/lib.rs:129:31
[INFO] [stdout]     |
[INFO] [stdout]  95 |         struct UdpHeader {
[INFO] [stdout]     |         ---------------- function or associated item `bits` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 129 |         assert_eq!(UdpHeader::bits(), 8 * 8);
[INFO] [stdout]     |                               ^^^^ function or associated item not found in `UdpHeader`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `sized::Sized` defines an item `bits`, perhaps you need to implement it
[INFO] [stdout]    --> src/sized.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | pub trait Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `U2` in the current scope
[INFO] [stdout]   --> examples/u2.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct U2(bool, bool);
[INFO] [stdout]    | --------- function or associated item `from_bytes` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     assert_eq!(U2::from_bytes(&[1, 2, 3]), Some(U2(false, false)));
[INFO] [stdout]    |                    ^^^^^^^^^^ function or associated item not found in `U2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following traits define an item `from_bytes`, perhaps you need to implement one of them:
[INFO] [stdout]            candidate #1: `Collum`
[INFO] [stdout]            candidate #2: `OsStrExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `U2` in the current scope
[INFO] [stdout]   --> examples/u2.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct U2(bool, bool);
[INFO] [stdout]    | --------- function or associated item `from_bytes` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     assert_eq!(U2::from_bytes(&[0b11111111, 0]), Some(U2(true, true)));
[INFO] [stdout]    |                    ^^^^^^^^^^ function or associated item not found in `U2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following traits define an item `from_bytes`, perhaps you need to implement one of them:
[INFO] [stdout]            candidate #1: `Collum`
[INFO] [stdout]            candidate #2: `OsStrExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `UdpHeader` in the current scope
[INFO] [stdout]    --> src/lib.rs:132:24
[INFO] [stdout]     |
[INFO] [stdout]  95 |         struct UdpHeader {
[INFO] [stdout]     |         ---------------- function or associated item `from_bytes` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 132 |             UdpHeader::from_bytes(&[0x01, 0xbb, 0xbf, 0xe5, 0x00, 0x21, 0x00, 0x00]),
[INFO] [stdout]     |                        ^^^^^^^^^^ function or associated item not found in `UdpHeader`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following traits define an item `from_bytes`, perhaps you need to implement one of them:
[INFO] [stdout]             candidate #1: `Collum`
[INFO] [stdout]             candidate #2: `OsStrExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `U2` in the current scope
[INFO] [stdout]   --> examples/u2.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct U2(bool, bool);
[INFO] [stdout]    | --------- function or associated item `from_bytes` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     assert_eq!(U2::from_bytes(&[0b10000000, 0]), Some(U2(true, false)));
[INFO] [stdout]    |                    ^^^^^^^^^^ function or associated item not found in `U2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following traits define an item `from_bytes`, perhaps you need to implement one of them:
[INFO] [stdout]            candidate #1: `Collum`
[INFO] [stdout]            candidate #2: `OsStrExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `from_bytes` exists for array `[U2; 10]`, but its trait bounds were not satisfied
[INFO] [stdout]   --> examples/u2.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct U2(bool, bool);
[INFO] [stdout]    | --------- doesn't satisfy `U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 17 |         <[U2; 10]>::from_bytes(&[0b00000001, 0b00000010, 0b00000011]),
[INFO] [stdout]    |                     ^^^^^^^^^^ function or associated item cannot be called on `[U2; 10]` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `U2: Collum`
[INFO] [stdout]            which is required by `[U2; 10]: Collum`
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `tests::parse_u2_derived::U2` in the current scope
[INFO] [stdout]    --> src/lib.rs:207:24
[INFO] [stdout]     |
[INFO] [stdout] 205 |         struct U2(bool, bool);
[INFO] [stdout]     |         --------- function or associated item `from_bytes` not found for this struct
[INFO] [stdout] 206 |
[INFO] [stdout] 207 |         assert_eq!(U2::from_bytes(&[1, 2, 3]), Some(U2(false, false)));
[INFO] [stdout]     |                        ^^^^^^^^^^ function or associated item not found in `tests::parse_u2_derived::U2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following traits define an item `from_bytes`, perhaps you need to implement one of them:
[INFO] [stdout]             candidate #1: `Collum`
[INFO] [stdout]             candidate #2: `OsStrExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `from_bytes` exists for array `[U2; 4]`, but its trait bounds were not satisfied
[INFO] [stdout]   --> examples/u2.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct U2(bool, bool);
[INFO] [stdout]    | --------- doesn't satisfy `U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 32 |         <[U2; 4]>::from_bytes(&[0b11111111]),
[INFO] [stdout]    |                    ^^^^^^^^^^ function or associated item cannot be called on `[U2; 4]` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `U2: Collum`
[INFO] [stdout]            which is required by `[U2; 4]: Collum`
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `tests::parse_u2_derived::U2` in the current scope
[INFO] [stdout]    --> src/lib.rs:208:24
[INFO] [stdout]     |
[INFO] [stdout] 205 |         struct U2(bool, bool);
[INFO] [stdout]     |         --------- function or associated item `from_bytes` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 208 |         assert_eq!(U2::from_bytes(&[0b11111111, 0]), Some(U2(true, true)));
[INFO] [stdout]     |                        ^^^^^^^^^^ function or associated item not found in `tests::parse_u2_derived::U2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following traits define an item `from_bytes`, perhaps you need to implement one of them:
[INFO] [stdout]             candidate #1: `Collum`
[INFO] [stdout]             candidate #2: `OsStrExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `from_bytes` exists for array `[U2; 5]`, but its trait bounds were not satisfied
[INFO] [stdout]   --> examples/u2.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct U2(bool, bool);
[INFO] [stdout]    | --------- doesn't satisfy `U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 35 |     assert_eq!(<[U2; 5]>::from_bytes(&[0b11000110]), None);
[INFO] [stdout]    |                           ^^^^^^^^^^ function or associated item cannot be called on `[U2; 5]` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `U2: Collum`
[INFO] [stdout]            which is required by `[U2; 5]: Collum`
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `tests::parse_u2_derived::U2` in the current scope
[INFO] [stdout]    --> src/lib.rs:209:24
[INFO] [stdout]     |
[INFO] [stdout] 205 |         struct U2(bool, bool);
[INFO] [stdout]     |         --------- function or associated item `from_bytes` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 209 |         assert_eq!(U2::from_bytes(&[0b10000000, 0]), Some(U2(true, false)));
[INFO] [stdout]     |                        ^^^^^^^^^^ function or associated item not found in `tests::parse_u2_derived::U2`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following traits define an item `from_bytes`, perhaps you need to implement one of them:
[INFO] [stdout]             candidate #1: `Collum`
[INFO] [stdout]             candidate #2: `OsStrExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `from_bytes` exists for array `[U2; 4]`, but its trait bounds were not satisfied
[INFO] [stdout]   --> examples/u2.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct U2(bool, bool);
[INFO] [stdout]    | --------- doesn't satisfy `U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 37 |         <[U2; 4]>::from_bytes(&[0b11000110]),
[INFO] [stdout]    |                    ^^^^^^^^^^ function or associated item cannot be called on `[U2; 4]` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `U2: Collum`
[INFO] [stdout]            which is required by `[U2; 4]: Collum`
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `from_bytes` exists for array `[tests::parse_u2_derived::U2; 10]`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/lib.rs:212:25
[INFO] [stdout]     |
[INFO] [stdout] 205 |         struct U2(bool, bool);
[INFO] [stdout]     |         --------- doesn't satisfy `tests::parse_u2_derived::U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 212 |             <[U2; 10]>::from_bytes(&[0b00000001, 0b00000010, 0b00000011]),
[INFO] [stdout]     |                         ^^^^^^^^^^ function or associated item cannot be called on `[tests::parse_u2_derived::U2; 10]` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout] note: trait bound `tests::parse_u2_derived::U2: Collum` was not satisfied
[INFO] [stdout]    --> src/impls.rs:67:8
[INFO] [stdout]     |
[INFO] [stdout]  65 | impl<T, const N: usize> Collum for [T; N]
[INFO] [stdout]     |                         ------     ------
[INFO] [stdout]  66 | where
[INFO] [stdout]  67 |     T: Collum,
[INFO] [stdout]     |        ^^^^^^ unsatisfied trait bound introduced here
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `Collum` defines an item `from_bytes`, perhaps you need to implement it
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `take_from_bit_slice` exists for array `[U2; 5]`, but its trait bounds were not satisfied
[INFO] [stdout]   --> examples/u2.rs:47:20
[INFO] [stdout]    |
[INFO] [stdout]  9 | struct U2(bool, bool);
[INFO] [stdout]    | --------- doesn't satisfy `U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 47 |         <[U2; 5]>::take_from_bit_slice((&[0b11000110, 0b10011100]).into()),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^ function or associated item cannot be called on `[U2; 5]` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `U2: Collum`
[INFO] [stdout]            which is required by `[U2; 5]: Collum`
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `from_bytes` exists for array `[tests::parse_u2_derived::U2; 4]`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/lib.rs:227:24
[INFO] [stdout]     |
[INFO] [stdout] 205 |         struct U2(bool, bool);
[INFO] [stdout]     |         --------- doesn't satisfy `tests::parse_u2_derived::U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 227 |             <[U2; 4]>::from_bytes(&[0b11111111]),
[INFO] [stdout]     |                        ^^^^^^^^^^ function or associated item cannot be called on `[tests::parse_u2_derived::U2; 4]` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout] note: trait bound `tests::parse_u2_derived::U2: Collum` was not satisfied
[INFO] [stdout]    --> src/impls.rs:67:8
[INFO] [stdout]     |
[INFO] [stdout]  65 | impl<T, const N: usize> Collum for [T; N]
[INFO] [stdout]     |                         ------     ------
[INFO] [stdout]  66 | where
[INFO] [stdout]  67 |     T: Collum,
[INFO] [stdout]     |        ^^^^^^ unsatisfied trait bound introduced here
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `Collum` defines an item `from_bytes`, perhaps you need to implement it
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `from_bytes` exists for array `[tests::parse_u2_derived::U2; 5]`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/lib.rs:230:31
[INFO] [stdout]     |
[INFO] [stdout] 205 |         struct U2(bool, bool);
[INFO] [stdout]     |         --------- doesn't satisfy `tests::parse_u2_derived::U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 230 |         assert_eq!(<[U2; 5]>::from_bytes(&[0b11000110]), None);
[INFO] [stdout]     |                               ^^^^^^^^^^ function or associated item cannot be called on `[tests::parse_u2_derived::U2; 5]` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout] note: trait bound `tests::parse_u2_derived::U2: Collum` was not satisfied
[INFO] [stdout]    --> src/impls.rs:67:8
[INFO] [stdout]     |
[INFO] [stdout]  65 | impl<T, const N: usize> Collum for [T; N]
[INFO] [stdout]     |                         ------     ------
[INFO] [stdout]  66 | where
[INFO] [stdout]  67 |     T: Collum,
[INFO] [stdout]     |        ^^^^^^ unsatisfied trait bound introduced here
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `Collum` defines an item `from_bytes`, perhaps you need to implement it
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `from_bytes` exists for array `[tests::parse_u2_derived::U2; 4]`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/lib.rs:232:24
[INFO] [stdout]     |
[INFO] [stdout] 205 |         struct U2(bool, bool);
[INFO] [stdout]     |         --------- doesn't satisfy `tests::parse_u2_derived::U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 232 |             <[U2; 4]>::from_bytes(&[0b11000110]),
[INFO] [stdout]     |                        ^^^^^^^^^^ function or associated item cannot be called on `[tests::parse_u2_derived::U2; 4]` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout] note: trait bound `tests::parse_u2_derived::U2: Collum` was not satisfied
[INFO] [stdout]    --> src/impls.rs:67:8
[INFO] [stdout]     |
[INFO] [stdout]  65 | impl<T, const N: usize> Collum for [T; N]
[INFO] [stdout]     |                         ------     ------
[INFO] [stdout]  66 | where
[INFO] [stdout]  67 |     T: Collum,
[INFO] [stdout]     |        ^^^^^^ unsatisfied trait bound introduced here
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `Collum` defines an item `from_bytes`, perhaps you need to implement it
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the function or associated item `take_from_bit_slice` exists for array `[tests::parse_u2_derived::U2; 5]`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/lib.rs:242:24
[INFO] [stdout]     |
[INFO] [stdout] 205 |         struct U2(bool, bool);
[INFO] [stdout]     |         --------- doesn't satisfy `tests::parse_u2_derived::U2: Collum`
[INFO] [stdout] ...
[INFO] [stdout] 242 |             <[U2; 5]>::take_from_bit_slice((&[0b11000110, 0b10011100]).into()),
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^ function or associated item cannot be called on `[tests::parse_u2_derived::U2; 5]` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout] note: trait bound `tests::parse_u2_derived::U2: Collum` was not satisfied
[INFO] [stdout]    --> src/impls.rs:67:8
[INFO] [stdout]     |
[INFO] [stdout]  65 | impl<T, const N: usize> Collum for [T; N]
[INFO] [stdout]     |                         ------     ------
[INFO] [stdout]  66 | where
[INFO] [stdout]  67 |     T: Collum,
[INFO] [stdout]     |        ^^^^^^ unsatisfied trait bound introduced here
[INFO] [stdout] note: the trait `Collum` must be implemented
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `Collum` defines an item `take_from_bit_slice`, perhaps you need to implement it
[INFO] [stdout]    --> src/lib.rs:58:1
[INFO] [stdout]     |
[INFO] [stdout]  58 | pub trait Collum: crate::Sized + core::marker::Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `bits` found for struct `Unit` in the current scope
[INFO] [stdout]    --> src/lib.rs:264:26
[INFO] [stdout]     |
[INFO] [stdout] 262 |         struct Unit;
[INFO] [stdout]     |         ----------- function or associated item `bits` not found for this struct
[INFO] [stdout] 263 |
[INFO] [stdout] 264 |         assert_eq!(Unit::bits(), 0);
[INFO] [stdout]     |                          ^^^^ function or associated item not found in `Unit`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `sized::Sized` defines an item `bits`, perhaps you need to implement it
[INFO] [stdout]    --> src/sized.rs:7:1
[INFO] [stdout]     |
[INFO] [stdout]   7 | pub trait Sized {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `Unit` in the current scope
[INFO] [stdout]    --> src/lib.rs:265:26
[INFO] [stdout]     |
[INFO] [stdout] 262 |         struct Unit;
[INFO] [stdout]     |         ----------- function or associated item `from_bytes` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 265 |         assert_eq!(Unit::from_bytes(&[1, 2, 3]), Some(Unit));
[INFO] [stdout]     |                          ^^^^^^^^^^ function or associated item not found in `Unit`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following traits define an item `from_bytes`, perhaps you need to implement one of them:
[INFO] [stdout]             candidate #1: `Collum`
[INFO] [stdout]             candidate #2: `OsStrExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `collum` (example "u2") due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `collum` (lib test) due to 14 previous errors
[INFO] running `Command { std: "docker" "inspect" "94c5cef7d8f5d96875278c73381131218c7b1fc7ce99edb8c0a895de016fc52d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94c5cef7d8f5d96875278c73381131218c7b1fc7ce99edb8c0a895de016fc52d", kill_on_drop: false }`
[INFO] [stdout] 94c5cef7d8f5d96875278c73381131218c7b1fc7ce99edb8c0a895de016fc52d
