[INFO] cloning repository https://github.com/lcnr/cobalt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lcnr/cobalt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcnr%2Fcobalt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcnr%2Fcobalt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f227a6d1ba75dc7d6b02bf41d48af9962a9b8ff3
[INFO] testing lcnr/cobalt against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcnr%2Fcobalt" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lcnr/cobalt on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lcnr/cobalt
[INFO] finished tweaking git repo https://github.com/lcnr/cobalt
[INFO] tweaked toml for git repo https://github.com/lcnr/cobalt written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/lcnr/cobalt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9b0727630f072a09119f3bac2535122ada2c82c5b03fa40acb31515ec67329f
[INFO] running `Command { std: "docker" "start" "-a" "c9b0727630f072a09119f3bac2535122ada2c82c5b03fa40acb31515ec67329f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9b0727630f072a09119f3bac2535122ada2c82c5b03fa40acb31515ec67329f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b0727630f072a09119f3bac2535122ada2c82c5b03fa40acb31515ec67329f", kill_on_drop: false }`
[INFO] [stdout] c9b0727630f072a09119f3bac2535122ada2c82c5b03fa40acb31515ec67329f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83855fb44c86e52ae90267702a693fa1f5b844a5dfec3178079606dd633adb2a
[INFO] running `Command { std: "docker" "start" "-a" "83855fb44c86e52ae90267702a693fa1f5b844a5dfec3178079606dd633adb2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling beef v0.5.0
[INFO] [stderr]    Compiling tindex v0.1.0 (https://github.com/lcnr/tindex/#659e7543)
[INFO] [stderr]    Compiling co_diag v0.1.0 (/opt/rustwide/workdir/co_diag)
[INFO] [stderr]    Compiling co_ast v0.1.0 (/opt/rustwide/workdir/co_ast)
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]   --> co_ast/src/typeck.rs:79:32
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 Res::LambdaArg(arg) => unreachable!(),
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling logos v0.12.0
[INFO] [stderr]    Compiling co_parse v0.1.0 (/opt/rustwide/workdir/co_parse)
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> co_parse/src/lib.rs:153:59
[INFO] [stdout]     |
[INFO] [stdout] 153 |         (Token::Lambda | Token::Ident(_) | Token::LBrace, span) => parse_expr(lex, Some(expr)),
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cobalt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.72s
[INFO] running `Command { std: "docker" "inspect" "83855fb44c86e52ae90267702a693fa1f5b844a5dfec3178079606dd633adb2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83855fb44c86e52ae90267702a693fa1f5b844a5dfec3178079606dd633adb2a", kill_on_drop: false }`
[INFO] [stdout] 83855fb44c86e52ae90267702a693fa1f5b844a5dfec3178079606dd633adb2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e153603223958ce161a00ef99d2c218d952c8d105c8447e77081d295200c6e88
[INFO] running `Command { std: "docker" "start" "-a" "e153603223958ce161a00ef99d2c218d952c8d105c8447e77081d295200c6e88", kill_on_drop: false }`
[INFO] [stderr]    Compiling cobalt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]   --> co_ast/src/typeck.rs:79:32
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 Res::LambdaArg(arg) => unreachable!(),
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> co_parse/src/lib.rs:153:59
[INFO] [stdout]     |
[INFO] [stdout] 153 |         (Token::Lambda | Token::Ident(_) | Token::LBrace, span) => parse_expr(lex, Some(expr)),
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "e153603223958ce161a00ef99d2c218d952c8d105c8447e77081d295200c6e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e153603223958ce161a00ef99d2c218d952c8d105c8447e77081d295200c6e88", kill_on_drop: false }`
[INFO] [stdout] e153603223958ce161a00ef99d2c218d952c8d105c8447e77081d295200c6e88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 655d7b827a9ca3a21c3dec8eff7a46b3b3defac5df827a6eaffb382e44622a04
[INFO] running `Command { std: "docker" "start" "-a" "655d7b827a9ca3a21c3dec8eff7a46b3b3defac5df827a6eaffb382e44622a04", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> co_ast/src/typeck.rs:79:32
[INFO] [stderr]    |
[INFO] [stderr] 79 |                 Res::LambdaArg(arg) => unreachable!(),
[INFO] [stderr]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `co_ast` (lib) generated 1 warning
[INFO] [stderr] warning: unused variable: `span`
[INFO] [stderr]    --> co_parse/src/lib.rs:153:59
[INFO] [stderr]     |
[INFO] [stderr] 153 |         (Token::Lambda | Token::Ident(_) | Token::LBrace, span) => parse_expr(lex, Some(expr)),
[INFO] [stderr]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `co_parse` (lib) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cobalt-9145f3f75da7285e)
[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 unittests (/opt/rustwide/target/debug/deps/cobalt-d5ced077cc5277c7)
[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]    Doc-tests cobalt
[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] running `Command { std: "docker" "inspect" "655d7b827a9ca3a21c3dec8eff7a46b3b3defac5df827a6eaffb382e44622a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655d7b827a9ca3a21c3dec8eff7a46b3b3defac5df827a6eaffb382e44622a04", kill_on_drop: false }`
[INFO] [stdout] 655d7b827a9ca3a21c3dec8eff7a46b3b3defac5df827a6eaffb382e44622a04