[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 master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrwerdo%2Fbmath" "/workspace/builds/worker-40/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mrwerdo/bmath on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-40/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42a292a367339194d40a63cff0aeeb7557ac69514890814b1e6c2979c5a15cae
[INFO] running `Command { std: "docker" "start" "-a" "42a292a367339194d40a63cff0aeeb7557ac69514890814b1e6c2979c5a15cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42a292a367339194d40a63cff0aeeb7557ac69514890814b1e6c2979c5a15cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a292a367339194d40a63cff0aeeb7557ac69514890814b1e6c2979c5a15cae", kill_on_drop: false }`
[INFO] [stdout] 42a292a367339194d40a63cff0aeeb7557ac69514890814b1e6c2979c5a15cae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8307cb9cc5871d7c669754342e8854af0f296ccd9d8e8d7273dfdac57c65cf5
[INFO] running `Command { std: "docker" "start" "-a" "e8307cb9cc5871d7c669754342e8854af0f296ccd9d8e8d7273dfdac57c65cf5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[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-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[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 nix v0.20.0
[INFO] [stderr]     Checking fd-lock v2.0.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking rustyline v8.2.0
[INFO] [stderr]     Checking bmath v0.1.0 (/opt/rustwide/workdir)
[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: `Real`
[INFO] [stdout]   --> src/objects.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Real(Real),
[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] warning: 4 warnings emitted
[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: `Real`
[INFO] [stdout]   --> src/objects.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Real(Real),
[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] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.20s
[INFO] running `Command { std: "docker" "inspect" "e8307cb9cc5871d7c669754342e8854af0f296ccd9d8e8d7273dfdac57c65cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8307cb9cc5871d7c669754342e8854af0f296ccd9d8e8d7273dfdac57c65cf5", kill_on_drop: false }`
[INFO] [stdout] e8307cb9cc5871d7c669754342e8854af0f296ccd9d8e8d7273dfdac57c65cf5