[INFO] cloning repository https://github.com/johnt7/sampleRust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnt7/sampleRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnt7%2FsampleRust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnt7%2FsampleRust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cda715b9d692549e59d6ac9ac582fdeff0e255ff [INFO] checking johnt7/sampleRust against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnt7%2FsampleRust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/johnt7/sampleRust on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/johnt7/sampleRust [INFO] finished tweaking git repo https://github.com/johnt7/sampleRust [INFO] tweaked toml for git repo https://github.com/johnt7/sampleRust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/johnt7/sampleRust 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9c47250dabce70be8edec1c674227a4fca49ae41210bb50e34e60e9cedda7204 [INFO] running `Command { std: "docker" "start" "-a" "9c47250dabce70be8edec1c674227a4fca49ae41210bb50e34e60e9cedda7204", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9c47250dabce70be8edec1c674227a4fca49ae41210bb50e34e60e9cedda7204", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c47250dabce70be8edec1c674227a4fca49ae41210bb50e34e60e9cedda7204", kill_on_drop: false }` [INFO] [stdout] 9c47250dabce70be8edec1c674227a4fca49ae41210bb50e34e60e9cedda7204 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4dff318bcb8de2f7853a43a0e21f1c1eadfc42a397a60cc2ae3a92ce316be66d [INFO] running `Command { std: "docker" "start" "-a" "4dff318bcb8de2f7853a43a0e21f1c1eadfc42a397a60cc2ae3a92ce316be66d", kill_on_drop: false }` [INFO] [stderr] Checking demoproj v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 86 | match fallible2jt(x) { [INFO] [stdout] | -------------- this expression has type `Jtres` [INFO] [stdout] 87 | Ok(s) => println!("worked 2={}", s), [INFO] [stdout] | ^^^^^ expected `Jtres`, found `Result<_, _>` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Jtres` [INFO] [stdout] found enum `Result<_, _>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 86 | match fallible2jt(x) { [INFO] [stdout] | -------------- this expression has type `Jtres` [INFO] [stdout] 87 | Ok(s) => println!("worked 2={}", s), [INFO] [stdout] | ^^^^^ expected `Jtres`, found `Result<_, _>` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Jtres` [INFO] [stdout] found enum `Result<_, _>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 86 | match fallible2jt(x) { [INFO] [stdout] | -------------- this expression has type `Jtres` [INFO] [stdout] 87 | Ok(s) => println!("worked 2={}", s), [INFO] [stdout] 88 | Err(e) => println!("error 2={}", e) [INFO] [stdout] | ^^^^^^ expected `Jtres`, found `Result<_, _>` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Jtres` [INFO] [stdout] found enum `Result<_, _>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 86 | match fallible2jt(x) { [INFO] [stdout] | -------------- this expression has type `Jtres` [INFO] [stdout] 87 | Ok(s) => println!("worked 2={}", s), [INFO] [stdout] 88 | Err(e) => println!("error 2={}", e) [INFO] [stdout] | ^^^^^^ expected `Jtres`, found `Result<_, _>` [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Jtres` [INFO] [stdout] found enum `Result<_, _>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let a = 42; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let a = 42; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/main.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let b = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/main.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let b = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `foo` is assigned to, but never used [INFO] [stdout] --> src/main.rs:117:13 [INFO] [stdout] | [INFO] [stdout] 117 | let mut foo: Option; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_foo` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `foo` is assigned to, but never used [INFO] [stdout] --> src/main.rs:117:13 [INFO] [stdout] | [INFO] [stdout] 117 | let mut foo: Option; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_foo` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `foo` is never read [INFO] [stdout] --> src/main.rs:118:5 [INFO] [stdout] | [INFO] [stdout] 118 | foo = None; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `foo` is never read [INFO] [stdout] --> src/main.rs:118:5 [INFO] [stdout] | [INFO] [stdout] 118 | foo = None; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `foo` is never read [INFO] [stdout] --> src/main.rs:119:5 [INFO] [stdout] | [INFO] [stdout] 119 | foo = Some(3); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `foo` is never read [INFO] [stdout] --> src/main.rs:119:5 [INFO] [stdout] | [INFO] [stdout] 119 | foo = Some(3); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `demoproj` (bin "demoproj") due to 3 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `demoproj` (bin "demoproj" test) due to 3 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "4dff318bcb8de2f7853a43a0e21f1c1eadfc42a397a60cc2ae3a92ce316be66d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dff318bcb8de2f7853a43a0e21f1c1eadfc42a397a60cc2ae3a92ce316be66d", kill_on_drop: false }` [INFO] [stdout] 4dff318bcb8de2f7853a43a0e21f1c1eadfc42a397a60cc2ae3a92ce316be66d [INFO] checking johnt7/sampleRust against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnt7%2FsampleRust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/johnt7/sampleRust on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/johnt7/sampleRust [INFO] finished tweaking git repo https://github.com/johnt7/sampleRust [INFO] tweaked toml for git repo https://github.com/johnt7/sampleRust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/johnt7/sampleRust 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f1c40f273185c2782b1180dcdebce6cf56f1f882595962e9027ee833b2944831 [INFO] running `Command { std: "docker" "start" "-a" "f1c40f273185c2782b1180dcdebce6cf56f1f882595962e9027ee833b2944831", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f1c40f273185c2782b1180dcdebce6cf56f1f882595962e9027ee833b2944831", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1c40f273185c2782b1180dcdebce6cf56f1f882595962e9027ee833b2944831", kill_on_drop: false }` [INFO] [stdout] f1c40f273185c2782b1180dcdebce6cf56f1f882595962e9027ee833b2944831 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de13b8f728776d23118625307219f0c995922db6936444f389b89b97f86c9c02 [INFO] running `Command { std: "docker" "start" "-a" "de13b8f728776d23118625307219f0c995922db6936444f389b89b97f86c9c02", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] skipping non-2021 edition `2018` [INFO] running `Command { std: "docker" "inspect" "de13b8f728776d23118625307219f0c995922db6936444f389b89b97f86c9c02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de13b8f728776d23118625307219f0c995922db6936444f389b89b97f86c9c02", kill_on_drop: false }` [INFO] [stdout] de13b8f728776d23118625307219f0c995922db6936444f389b89b97f86c9c02