[INFO] fetching crate zc 0.4.0...
[INFO] testing zc-0.4.0 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate zc 0.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate zc 0.4.0
[INFO] finished tweaking crates.io crate zc 0.4.0
[INFO] tweaked toml for crates.io crate zc 0.4.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zc 0.4.0 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zc 0.4.0 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 886cd38b8ef91bfe06f94a7fca55aee0eab3763a1ab552a98755c2f1ee099ad2
[INFO] running `Command { std: "docker" "start" "-a" "886cd38b8ef91bfe06f94a7fca55aee0eab3763a1ab552a98755c2f1ee099ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "886cd38b8ef91bfe06f94a7fca55aee0eab3763a1ab552a98755c2f1ee099ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "886cd38b8ef91bfe06f94a7fca55aee0eab3763a1ab552a98755c2f1ee099ad2", kill_on_drop: false }`
[INFO] [stdout] 886cd38b8ef91bfe06f94a7fca55aee0eab3763a1ab552a98755c2f1ee099ad2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cb73afaa8e7d14ea69e84d389e0eb547f3b47900db5d56d794e982013a901bb
[INFO] running `Command { std: "docker" "start" "-a" "7cb73afaa8e7d14ea69e84d389e0eb547f3b47900db5d56d794e982013a901bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling aliasable v0.1.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling zc-derive v0.4.0
[INFO] [stderr]    Compiling zc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:152:36
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn get<'a, T>(&'a self) -> &T
[INFO] [stdout]     |                        --          ^^ the same lifetime is elided here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:16:5
[INFO] [stdout]     |
[INFO] [stdout]  16 |     warnings
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn get<'a, T>(&'a self) -> &'a T
[INFO] [stdout]     |                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `Command { std: "docker" "inspect" "7cb73afaa8e7d14ea69e84d389e0eb547f3b47900db5d56d794e982013a901bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb73afaa8e7d14ea69e84d389e0eb547f3b47900db5d56d794e982013a901bb", kill_on_drop: false }`
[INFO] [stdout] 7cb73afaa8e7d14ea69e84d389e0eb547f3b47900db5d56d794e982013a901bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c9b62c7678e487df5f68adf2285aa349e7f3b3abf82193292c34276ab2ff231
[INFO] running `Command { std: "docker" "start" "-a" "0c9b62c7678e487df5f68adf2285aa349e7f3b3abf82193292c34276ab2ff231", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.120
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling trybuild v1.0.38
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:152:36
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn get<'a, T>(&'a self) -> &T
[INFO] [stdout]     |                        --          ^^ the same lifetime is elided here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:16:5
[INFO] [stdout]     |
[INFO] [stdout]  16 |     warnings
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn get<'a, T>(&'a self) -> &'a T
[INFO] [stdout]     |                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling dangerous v0.8.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling zc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/test_zc.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ChildType<'a>(&'a ());
[INFO] [stdout]   |            ---------     ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/test_zc.rs:11:38
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct StructWithOneLifetime<'a>(ChildType<'a>);
[INFO] [stdout]    |            ---------------------     ^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:152:36
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn get<'a, T>(&'a self) -> &T
[INFO] [stdout]     |                        --          ^^ the same lifetime is elided here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:16:5
[INFO] [stdout]     |
[INFO] [stdout]  16 |     warnings
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn get<'a, T>(&'a self) -> &'a T
[INFO] [stdout]     |                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.29s
[INFO] running `Command { std: "docker" "inspect" "0c9b62c7678e487df5f68adf2285aa349e7f3b3abf82193292c34276ab2ff231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9b62c7678e487df5f68adf2285aa349e7f3b3abf82193292c34276ab2ff231", kill_on_drop: false }`
[INFO] [stdout] 0c9b62c7678e487df5f68adf2285aa349e7f3b3abf82193292c34276ab2ff231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 314bb403239a00a77be8482c81ba5991a3d104a7d778eee991c9f7fc1b612ecc
[INFO] running `Command { std: "docker" "start" "-a" "314bb403239a00a77be8482c81ba5991a3d104a7d778eee991c9f7fc1b612ecc", kill_on_drop: false }`
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:152:36
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn get<'a, T>(&'a self) -> &T
[INFO] [stderr]     |                        --          ^^ the same lifetime is elided here
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        the lifetime is named here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:16:5
[INFO] [stderr]     |
[INFO] [stderr]  16 |     warnings
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn get<'a, T>(&'a self) -> &'a T
[INFO] [stderr]     |                                     ++
[INFO] [stderr] 
[INFO] [stderr] warning: `zc` (lib) generated 1 warning (run `cargo fix --lib -p zc` to apply 1 suggestion)
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> tests/test_zc.rs:8:26
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct ChildType<'a>(&'a ());
[INFO] [stderr]   |            ---------     ^^^^^^
[INFO] [stderr]   |            |
[INFO] [stderr]   |            field in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing this field
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> tests/test_zc.rs:11:38
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct StructWithOneLifetime<'a>(ChildType<'a>);
[INFO] [stderr]    |            ---------------------     ^^^^^^^^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr] 
[INFO] [stderr] warning: `zc` (test "test_zc") generated 2 warnings
[INFO] [stderr] warning: `zc` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/zc-a4771e02ff5c8d6a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/test_invalid_use.rs (/opt/rustwide/target/debug/deps/test_invalid_use-61f06817f1471764)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_zc.rs (/opt/rustwide/target/debug/deps/test_zc-884339ec850f08e5)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test_aliasable_box ... ok
[INFO] [stdout] test test_aliasable_vec ... ok
[INFO] [stdout] test test_struct_with_bytes_construct ... ok
[INFO] [stdout] test test_struct_with_bytes_from ... ok
[INFO] [stdout] test test_struct_with_error ... ok
[INFO] [stdout] test test_struct_with_str_from ... ok
[INFO] [stdout] test test_struct_with_bytes_try_from ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zc
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - Dependant (line 345) ... ok
[INFO] [stdout] test src/lib.rs - Zc<O,D>::try_new (line 88) ... ok
[INFO] [stdout] test src/lib.rs - Zc<O,D>::get (line 128) ... ok
[INFO] [stdout] test src/lib.rs - Dependant (line 391) ... ok
[INFO] [stdout] test src/lib.rs - Zc<O,D>::new (line 58) ... ok
[INFO] [stdout] test src/lib.rs - Zc<O,D>::as_owned (line 168) ... ok
[INFO] [stdout] test src/lib.rs - Dependant (line 363) ... ok
[INFO] [stdout] test src/lib.rs - Zc<O,D>::into_owner (line 192) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "314bb403239a00a77be8482c81ba5991a3d104a7d778eee991c9f7fc1b612ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314bb403239a00a77be8482c81ba5991a3d104a7d778eee991c9f7fc1b612ecc", kill_on_drop: false }`
[INFO] [stdout] 314bb403239a00a77be8482c81ba5991a3d104a7d778eee991c9f7fc1b612ecc
