[INFO] fetching crate mimium-fmt 4.0.0-alpha.6...
[INFO] checking mimium-fmt-4.0.0-alpha.6 against master#64b72a1fa5449d928d5f553b01a596b78ee255d2 for pr-153457
[INFO] extracting crate mimium-fmt 4.0.0-alpha.6 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate mimium-fmt 4.0.0-alpha.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mimium-fmt 4.0.0-alpha.6
[INFO] tweaked toml for crates.io crate mimium-fmt 4.0.0-alpha.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mimium-fmt 4.0.0-alpha.6 on toolchain 64b72a1fa5449d928d5f553b01a596b78ee255d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b72a1fa5449d928d5f553b01a596b78ee255d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mimium-fmt 4.0.0-alpha.6 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" "+64b72a1fa5449d928d5f553b01a596b78ee255d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+64b72a1fa5449d928d5f553b01a596b78ee255d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ece3ecb858410dc425c1496db02b52e98fc06504c3ea363182021483ebeb550
[INFO] running `Command { std: "docker" "start" "-a" "1ece3ecb858410dc425c1496db02b52e98fc06504c3ea363182021483ebeb550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ece3ecb858410dc425c1496db02b52e98fc06504c3ea363182021483ebeb550", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ece3ecb858410dc425c1496db02b52e98fc06504c3ea363182021483ebeb550", kill_on_drop: false }`
[INFO] [stdout] 1ece3ecb858410dc425c1496db02b52e98fc06504c3ea363182021483ebeb550
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+64b72a1fa5449d928d5f553b01a596b78ee255d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cfb2e5a0d171da99793f9d8020eb8441a103d71e54ce91b20903c6e1d01b0cf
[INFO] running `Command { std: "docker" "start" "-a" "4cfb2e5a0d171da99793f9d8020eb8441a103d71e54ce91b20903c6e1d01b0cf", kill_on_drop: false }`
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[INFO] [stdout] warning: variable `seen_eq` is assigned to, but never used
[INFO] [stdout]    --> src/cst_print.rs:591:9
[INFO] [stdout]     |
[INFO] [stdout] 591 |     let mut seen_eq = false;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_seen_eq` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `seen_eq` is never read
[INFO] [stdout]    --> src/cst_print.rs:603:17
[INFO] [stdout]     |
[INFO] [stdout] 603 |                 seen_eq = true;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scrutinee`
[INFO] [stdout]    --> src/print.rs:447:25
[INFO] [stdout]     |
[INFO] [stdout] 447 |             Expr::Match(scrutinee, arms) => {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scrutinee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arms`
[INFO] [stdout]    --> src/print.rs:447:36
[INFO] [stdout]     |
[INFO] [stdout] 447 |             Expr::Match(scrutinee, arms) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_arms`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `seen_eq` is assigned to, but never used
[INFO] [stdout]    --> src/cst_print.rs:591:9
[INFO] [stdout]     |
[INFO] [stdout] 591 |     let mut seen_eq = false;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_seen_eq` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `seen_eq` is never read
[INFO] [stdout]    --> src/cst_print.rs:603:17
[INFO] [stdout]     |
[INFO] [stdout] 603 |                 seen_eq = true;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pretty_print` is never used
[INFO] [stdout]    --> src/print.rs:662:8
[INFO] [stdout]     |
[INFO] [stdout] 662 | pub fn pretty_print(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scrutinee`
[INFO] [stdout]    --> src/print.rs:447:25
[INFO] [stdout]     |
[INFO] [stdout] 447 |             Expr::Match(scrutinee, arms) => {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scrutinee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arms`
[INFO] [stdout]    --> src/print.rs:447:36
[INFO] [stdout]     |
[INFO] [stdout] 447 |             Expr::Match(scrutinee, arms) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_arms`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pretty_print` is never used
[INFO] [stdout]    --> src/print.rs:662:8
[INFO] [stdout]     |
[INFO] [stdout] 662 | pub fn pretty_print(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "4cfb2e5a0d171da99793f9d8020eb8441a103d71e54ce91b20903c6e1d01b0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cfb2e5a0d171da99793f9d8020eb8441a103d71e54ce91b20903c6e1d01b0cf", kill_on_drop: false }`
[INFO] [stdout] 4cfb2e5a0d171da99793f9d8020eb8441a103d71e54ce91b20903c6e1d01b0cf