[INFO] cloning repository https://github.com/parrottq/tworld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/parrottq/tworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparrottq%2Ftworld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparrottq%2Ftworld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adf9f959c37573b18914e8885e1fdaf9e655017e
[INFO] checking parrottq/tworld against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparrottq%2Ftworld" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/parrottq/tworld on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/parrottq/tworld
[INFO] finished tweaking git repo https://github.com/parrottq/tworld
[INFO] tweaked toml for git repo https://github.com/parrottq/tworld written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/parrottq/tworld already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.2.0
[INFO] [stderr]   Downloaded num-complex v0.2.3
[INFO] [stderr]   Downloaded num-bigint v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16c5179fe10dfd59d1f7ba904d09904f3f085636ce86783760406b538f6ad477
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "16c5179fe10dfd59d1f7ba904d09904f3f085636ce86783760406b538f6ad477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16c5179fe10dfd59d1f7ba904d09904f3f085636ce86783760406b538f6ad477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c5179fe10dfd59d1f7ba904d09904f3f085636ce86783760406b538f6ad477", kill_on_drop: false }`
[INFO] [stdout] 16c5179fe10dfd59d1f7ba904d09904f3f085636ce86783760406b538f6ad477
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56334f1efdf9d99514200e74b51a8d9786e0ba4f2eebbb17c693e8a4200ebb54
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "56334f1efdf9d99514200e74b51a8d9786e0ba4f2eebbb17c693e8a4200ebb54", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking tworld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parsing.rs:120:22
[INFO] [stdout]     |
[INFO] [stdout] 120 |         reader: &mut FnMut(&mut Self) -> T,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self) -> T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parsing.rs:121:21
[INFO] [stdout]     |
[INFO] [stdout] 121 |         sizer: &mut FnMut(&mut Self) -> G,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self) -> G`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writing.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 |         writer: &mut FnMut(&mut Self, T),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writing.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 |         counter: &mut FnMut(&mut Self, G),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, G)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writing.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |         writer: &mut FnMut(&mut Self, T),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writing.rs:63:23
[INFO] [stdout]    |
[INFO] [stdout] 63 |         counter: &mut FnMut(&mut Self, G),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, G)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parsing.rs:120:22
[INFO] [stdout]     |
[INFO] [stdout] 120 |         reader: &mut FnMut(&mut Self) -> T,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self) -> T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parsing.rs:121:21
[INFO] [stdout]     |
[INFO] [stdout] 121 |         sizer: &mut FnMut(&mut Self) -> G,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self) -> G`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writing.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 |         writer: &mut FnMut(&mut Self, T),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writing.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 |         counter: &mut FnMut(&mut Self, G),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, G)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writing.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |         writer: &mut FnMut(&mut Self, T),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, T)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writing.rs:63:23
[INFO] [stdout]    |
[INFO] [stdout] 63 |         counter: &mut FnMut(&mut Self, G),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&mut Self, G)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.56s
[INFO] running `Command { std: "docker" "inspect" "56334f1efdf9d99514200e74b51a8d9786e0ba4f2eebbb17c693e8a4200ebb54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56334f1efdf9d99514200e74b51a8d9786e0ba4f2eebbb17c693e8a4200ebb54", kill_on_drop: false }`
[INFO] [stdout] 56334f1efdf9d99514200e74b51a8d9786e0ba4f2eebbb17c693e8a4200ebb54