[INFO] cloning repository https://github.com/Kayanski/rust-trait-impl-reproduce
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kayanski/rust-trait-impl-reproduce" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKayanski%2Frust-trait-impl-reproduce", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKayanski%2Frust-trait-impl-reproduce'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0a58f3abf32245a577b6651c14073b1dacde9d0
[INFO] checking Kayanski/rust-trait-impl-reproduce against try#50d7e48beb74b48bd17c3749bfb73843c9ae0166 for pr-151102
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKayanski%2Frust-trait-impl-reproduce" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kayanski/rust-trait-impl-reproduce
[INFO] finished tweaking git repo https://github.com/Kayanski/rust-trait-impl-reproduce
[INFO] tweaked toml for git repo https://github.com/Kayanski/rust-trait-impl-reproduce written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kayanski/rust-trait-impl-reproduce on toolchain 50d7e48beb74b48bd17c3749bfb73843c9ae0166
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kayanski/rust-trait-impl-reproduce 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" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5184c655d44d57aa16ce4c32ea3cc7a9d27684a18836aa8978f54ced08d4917
[INFO] running `Command { std: "docker" "start" "-a" "b5184c655d44d57aa16ce4c32ea3cc7a9d27684a18836aa8978f54ced08d4917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5184c655d44d57aa16ce4c32ea3cc7a9d27684a18836aa8978f54ced08d4917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5184c655d44d57aa16ce4c32ea3cc7a9d27684a18836aa8978f54ced08d4917", kill_on_drop: false }`
[INFO] [stdout] b5184c655d44d57aa16ce4c32ea3cc7a9d27684a18836aa8978f54ced08d4917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+50d7e48beb74b48bd17c3749bfb73843c9ae0166" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73177d68f6580bf82b52c35b9177ab3568f7ee37fe0466110f0195bc40f208b6
[INFO] running `Command { std: "docker" "start" "-a" "73177d68f6580bf82b52c35b9177ab3568f7ee37fe0466110f0195bc40f208b6", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking trait-def v0.1.0 (/opt/rustwide/workdir/trait-def)
[INFO] [stderr]     Checking overr v0.1.0 (/opt/rustwide/workdir/over)
[INFO] [stderr]     Checking both v0.1.0 (/opt/rustwide/workdir/both)
[INFO] [stdout] warning: unused import: `FirstArgument`
[INFO] [stdout]  --> over/src/lib.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use trait_def::{First, FirstArgument};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `overr` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stdout] warning: unused import: `FirstArgument`
[INFO] [stdout]  --> over/src/lib.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use trait_def::{First, FirstArgument};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> both/src/lib.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn from(value: <First as Test>::Exec) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `From<SecondArgument>` for type `SecondArgument`
[INFO] [stdout]   --> over/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl From<<First as Test>::Exec> for SecondArgument {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: conflicting implementation in crate `core`:
[INFO] [stdout]            - impl<T> From<T> for T;
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> over/src/lib.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn from(value: <First as Test>::Exec) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `From<SecondArgument>` for type `SecondArgument`
[INFO] [stdout]   --> over/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl From<<First as Test>::Exec> for SecondArgument {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: conflicting implementation in crate `core`:
[INFO] [stdout]            - impl<T> From<T> for T;
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> over/src/lib.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn from(value: <First as Test>::Exec) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> both/src/lib.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn from(value: <First as Test>::Exec) -> Self {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[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 E0119`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0119`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `overr` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "73177d68f6580bf82b52c35b9177ab3568f7ee37fe0466110f0195bc40f208b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73177d68f6580bf82b52c35b9177ab3568f7ee37fe0466110f0195bc40f208b6", kill_on_drop: false }`
[INFO] [stdout] 73177d68f6580bf82b52c35b9177ab3568f7ee37fe0466110f0195bc40f208b6