[INFO] cloning repository https://github.com/Mrwerdo/bmath
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mrwerdo/bmath" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrwerdo%2Fbmath", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrwerdo%2Fbmath'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ca7456365a81e6e2ebf9d09c5ddd10506bcac2f3
[INFO] checking Mrwerdo/bmath against try#c05ee43175e02d208faed1fcc0f436c56e48bba6 for pr-92413
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrwerdo%2Fbmath" "/workspace/builds/worker-86/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mrwerdo/bmath on toolchain c05ee43175e02d208faed1fcc0f436c56e48bba6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mrwerdo/bmath
[INFO] finished tweaking git repo https://github.com/Mrwerdo/bmath
[INFO] tweaked toml for git repo https://github.com/Mrwerdo/bmath written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate git repo https://github.com/Mrwerdo/bmath already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65ecdee95bdcc01732359fd2c4b9a3090ee70ce9d34b75884f890bd3549f52e8
[INFO] running `Command { std: "docker" "start" "-a" "65ecdee95bdcc01732359fd2c4b9a3090ee70ce9d34b75884f890bd3549f52e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65ecdee95bdcc01732359fd2c4b9a3090ee70ce9d34b75884f890bd3549f52e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ecdee95bdcc01732359fd2c4b9a3090ee70ce9d34b75884f890bd3549f52e8", kill_on_drop: false }`
[INFO] [stdout] 65ecdee95bdcc01732359fd2c4b9a3090ee70ce9d34b75884f890bd3549f52e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fd8212bdb98033090eece4d0b7eb29b78725813e68887208be44558a2249859
[INFO] running `Command { std: "docker" "start" "-a" "9fd8212bdb98033090eece4d0b7eb29b78725813e68887208be44558a2249859", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking fd-lock v2.0.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rustyline v8.2.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking bmath v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]   --> src/objects.rs:97:20
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub trait Callable<'a> {
[INFO] [stdout]    |                   -^^- help: elide the unused lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout]   --> src/objects.rs:97:20
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub trait Callable<'a> {
[INFO] [stdout]    |                   -^^- help: elide the unused lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]   --> src/objects.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Integer(Integer),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]   --> src/objects.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Integer(Integer),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Vector`
[INFO] [stdout]   --> src/objects.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Vector(Vector)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `convert`
[INFO] [stdout]   --> src/objects.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn convert(self: &Self, target_type: ObjectType) -> Result<Object, ConversionFailure> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Vector`
[INFO] [stdout]   --> src/objects.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Vector(Vector)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `convert`
[INFO] [stdout]   --> src/objects.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn convert(self: &Self, target_type: ObjectType) -> Result<Object, ConversionFailure> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bmath` due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9fd8212bdb98033090eece4d0b7eb29b78725813e68887208be44558a2249859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fd8212bdb98033090eece4d0b7eb29b78725813e68887208be44558a2249859", kill_on_drop: false }`
[INFO] [stdout] 9fd8212bdb98033090eece4d0b7eb29b78725813e68887208be44558a2249859