[INFO] cloning repository https://github.com/Ndeta100/Mutability_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ndeta100/Mutability_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNdeta100%2FMutability_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNdeta100%2FMutability_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f4c58d490c5415a84817aee41c308783d7c00b0
[INFO] testing Ndeta100/Mutability_in_rust against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNdeta100%2FMutability_in_rust" "/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/Ndeta100/Mutability_in_rust
[INFO] finished tweaking git repo https://github.com/Ndeta100/Mutability_in_rust
[INFO] tweaked toml for git repo https://github.com/Ndeta100/Mutability_in_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ndeta100/Mutability_in_rust on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ndeta100/Mutability_in_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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e921309cdcf5cb6676f6525eceb0a1f5aa067755ffad16018f89d350b32a3f5d
[INFO] running `Command { std: "docker" "start" "-a" "e921309cdcf5cb6676f6525eceb0a1f5aa067755ffad16018f89d350b32a3f5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e921309cdcf5cb6676f6525eceb0a1f5aa067755ffad16018f89d350b32a3f5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e921309cdcf5cb6676f6525eceb0a1f5aa067755ffad16018f89d350b32a3f5d", kill_on_drop: false }`
[INFO] [stdout] e921309cdcf5cb6676f6525eceb0a1f5aa067755ffad16018f89d350b32a3f5d
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3775d0fa8a3aed38f9aeae0dacc5bbfbec0a919cfe635d7e51d89bebe72bbb54
[INFO] running `Command { std: "docker" "start" "-a" "3775d0fa8a3aed38f9aeae0dacc5bbfbec0a919cfe635d7e51d89bebe72bbb54", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutability v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "3775d0fa8a3aed38f9aeae0dacc5bbfbec0a919cfe635d7e51d89bebe72bbb54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3775d0fa8a3aed38f9aeae0dacc5bbfbec0a919cfe635d7e51d89bebe72bbb54", kill_on_drop: false }`
[INFO] [stdout] 3775d0fa8a3aed38f9aeae0dacc5bbfbec0a919cfe635d7e51d89bebe72bbb54
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5edf931179ed198521f68d46c469a9a4798680872a571cc505c8b0a99d81a730
[INFO] running `Command { std: "docker" "start" "-a" "5edf931179ed198521f68d46c469a9a4798680872a571cc505c8b0a99d81a730", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutability v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `Vec<{integer}>: Copy` is not satisfied
[INFO] [stdout]   --> src/lib.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let first = &x.get()[0];
[INFO] [stdout]    |                        ^^^ the trait `Copy` is not implemented for `Vec<{integer}>`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `Cell::<T>::get`
[INFO] [stdout]   --> src/lib.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn get(&self) -> T
[INFO] [stdout]    |            --- required by a bound in this associated function
[INFO] [stdout] 20 |     where
[INFO] [stdout] 21 |         T: Copy,
[INFO] [stdout]    |            ^^^^ required by this bound in `Cell::<T>::get`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mutability` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5edf931179ed198521f68d46c469a9a4798680872a571cc505c8b0a99d81a730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5edf931179ed198521f68d46c469a9a4798680872a571cc505c8b0a99d81a730", kill_on_drop: false }`
[INFO] [stdout] 5edf931179ed198521f68d46c469a9a4798680872a571cc505c8b0a99d81a730