[INFO] cloning repository https://github.com/mist-lang/mist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mist-lang/mist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmist-lang%2Fmist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmist-lang%2Fmist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad02ce2b6d722c5cc41cf3e11a4c0c86bd4557c1
[INFO] testing mist-lang/mist against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmist-lang%2Fmist" "/workspace/builds/worker-99/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-99/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mist-lang/mist 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] removed /workspace/builds/worker-99/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mist-lang/mist
[INFO] finished tweaking git repo https://github.com/mist-lang/mist
[INFO] tweaked toml for git repo https://github.com/mist-lang/mist written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate git repo https://github.com/mist-lang/mist 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-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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] 7b2ec7aa46b97adb488a760462d5e27847558fd1f5e2340a4c674e3ed9eb3622
[INFO] running `Command { std: "docker" "start" "-a" "7b2ec7aa46b97adb488a760462d5e27847558fd1f5e2340a4c674e3ed9eb3622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b2ec7aa46b97adb488a760462d5e27847558fd1f5e2340a4c674e3ed9eb3622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b2ec7aa46b97adb488a760462d5e27847558fd1f5e2340a4c674e3ed9eb3622", kill_on_drop: false }`
[INFO] [stdout] 7b2ec7aa46b97adb488a760462d5e27847558fd1f5e2340a4c674e3ed9eb3622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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] 99ba7e59c15903751c814fdc234bdc6d68bf54c05528cfb97f101649fec0ca7e
[INFO] running `Command { std: "docker" "start" "-a" "99ba7e59c15903751c814fdc234bdc6d68bf54c05528cfb97f101649fec0ca7e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling quick-error v2.0.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling handlebars v3.5.4
[INFO] [stderr]    Compiling mist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `stmts`
[INFO] [stdout]   --> src/ast/mod.rs:38:2
[INFO] [stdout]    |
[INFO] [stdout] 38 |     stmts: Vec<Stmt>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/webassembly.rs:107:2
[INFO] [stdout]     |
[INFO] [stdout] 107 |     name: Index,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `valtype`
[INFO] [stdout]    --> src/webassembly.rs:108:2
[INFO] [stdout]     |
[INFO] [stdout] 108 |     valtype: ValType,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.27s
[INFO] running `Command { std: "docker" "inspect" "99ba7e59c15903751c814fdc234bdc6d68bf54c05528cfb97f101649fec0ca7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99ba7e59c15903751c814fdc234bdc6d68bf54c05528cfb97f101649fec0ca7e", kill_on_drop: false }`
[INFO] [stdout] 99ba7e59c15903751c814fdc234bdc6d68bf54c05528cfb97f101649fec0ca7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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] 32ac6ffaa4b335f0cbee27933e20793b6ffc8406ad43e97d363586c3a08c9a3f
[INFO] running `Command { std: "docker" "start" "-a" "32ac6ffaa4b335f0cbee27933e20793b6ffc8406ad43e97d363586c3a08c9a3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `stmts`
[INFO] [stdout]   --> src/ast/mod.rs:38:2
[INFO] [stdout]    |
[INFO] [stdout] 38 |     stmts: Vec<Stmt>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/webassembly.rs:107:2
[INFO] [stdout]     |
[INFO] [stdout] 107 |     name: Index,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `valtype`
[INFO] [stdout]    --> src/webassembly.rs:108:2
[INFO] [stdout]     |
[INFO] [stdout] 108 |     valtype: ValType,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stmts`
[INFO] [stdout]   --> src/ast/mod.rs:38:2
[INFO] [stdout]    |
[INFO] [stdout] 38 |     stmts: Vec<Stmt>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/webassembly.rs:107:2
[INFO] [stdout]     |
[INFO] [stdout] 107 |     name: Index,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `valtype`
[INFO] [stdout]    --> src/webassembly.rs:108:2
[INFO] [stdout]     |
[INFO] [stdout] 108 |     valtype: ValType,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "32ac6ffaa4b335f0cbee27933e20793b6ffc8406ad43e97d363586c3a08c9a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32ac6ffaa4b335f0cbee27933e20793b6ffc8406ad43e97d363586c3a08c9a3f", kill_on_drop: false }`
[INFO] [stdout] 32ac6ffaa4b335f0cbee27933e20793b6ffc8406ad43e97d363586c3a08c9a3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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] c2f13b6ddca14fba6fc7d5e3f24376b1fb67d6f447f7be27522a98ef7c1c3ffd
[INFO] running `Command { std: "docker" "start" "-a" "c2f13b6ddca14fba6fc7d5e3f24376b1fb67d6f447f7be27522a98ef7c1c3ffd", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `stmts`
[INFO] [stderr]   --> src/ast/mod.rs:38:2
[INFO] [stderr]    |
[INFO] [stderr] 38 |     stmts: Vec<Stmt>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]    --> src/webassembly.rs:107:2
[INFO] [stderr]     |
[INFO] [stderr] 107 |     name: Index,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `valtype`
[INFO] [stderr]    --> src/webassembly.rs:108:2
[INFO] [stderr]     |
[INFO] [stderr] 108 |     valtype: ValType,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mist` (lib) generated 3 warnings
[INFO] [stderr] warning: `mist` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mist-b53a49284ed69972)
[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/mist-6e01e1f6d952394a)
[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 mist
[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" "c2f13b6ddca14fba6fc7d5e3f24376b1fb67d6f447f7be27522a98ef7c1c3ffd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2f13b6ddca14fba6fc7d5e3f24376b1fb67d6f447f7be27522a98ef7c1c3ffd", kill_on_drop: false }`
[INFO] [stdout] c2f13b6ddca14fba6fc7d5e3f24376b1fb67d6f447f7be27522a98ef7c1c3ffd