[INFO] cloning repository https://github.com/AkihiroSasabe/rust_doc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AkihiroSasabe/rust_doc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkihiroSasabe%2Frust_doc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkihiroSasabe%2Frust_doc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4811a5eccf492369dfba5b62af16983b6189708a
[INFO] checking AkihiroSasabe/rust_doc against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkihiroSasabe%2Frust_doc" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AkihiroSasabe/rust_doc on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AkihiroSasabe/rust_doc
[INFO] finished tweaking git repo https://github.com/AkihiroSasabe/rust_doc
[INFO] tweaked toml for git repo https://github.com/AkihiroSasabe/rust_doc written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AkihiroSasabe/rust_doc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proconio v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ace3d1d64ce2817a5085d967bfa3cb6596b0fa201b5f0547278f3d6ba1792bd3
[INFO] running `Command { std: "docker" "start" "-a" "ace3d1d64ce2817a5085d967bfa3cb6596b0fa201b5f0547278f3d6ba1792bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ace3d1d64ce2817a5085d967bfa3cb6596b0fa201b5f0547278f3d6ba1792bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ace3d1d64ce2817a5085d967bfa3cb6596b0fa201b5f0547278f3d6ba1792bd3", kill_on_drop: false }`
[INFO] [stdout] ace3d1d64ce2817a5085d967bfa3cb6596b0fa201b5f0547278f3d6ba1792bd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7642661b2614986ff6c1b18eb7d7bb13d6a5b20dee8679d29b6d3f9586a8d4c1
[INFO] running `Command { std: "docker" "start" "-a" "7642661b2614986ff6c1b18eb7d7bb13d6a5b20dee8679d29b6d3f9586a8d4c1", kill_on_drop: false }`
[INFO] [stderr]     Checking proconio v0.3.8
[INFO] [stderr]     Checking rust_doc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: the method `call_box` exists for struct `Box<dyn FnOnce() + Send>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/lib.rs:46:69
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn call_box(self: Box<Self>);
[INFO] [stdout]    |                       --------- the method might not be found because of this arbitrary self type
[INFO] [stdout] ...
[INFO] [stdout] 46 |                                                                 job.call_box();
[INFO] [stdout]    |                                                                     ^^^^^^^^ method cannot be called on `Box<dyn FnOnce() + Send>` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout] note: trait bound `dyn FnOnce() + Send: Sized` was not satisfied
[INFO] [stdout]   --> src/lib.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<F: FnOnce()> FnBox for F {
[INFO] [stdout]    |      ^            -----     -
[INFO] [stdout]    |      |
[INFO] [stdout]    |      unsatisfied trait bound introduced here
[INFO] [stdout] help: consider relaxing the type parameter's implicit `Sized` bound
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<F: ?Sized + FnOnce()> FnBox for F {
[INFO] [stdout]    |         ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_doc` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: the method `call_box` exists for struct `Box<dyn FnOnce() + Send>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/lib.rs:46:69
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn call_box(self: Box<Self>);
[INFO] [stdout]    |                       --------- the method might not be found because of this arbitrary self type
[INFO] [stdout] ...
[INFO] [stdout] 46 |                                                                 job.call_box();
[INFO] [stdout]    |                                                                     ^^^^^^^^ method cannot be called on `Box<dyn FnOnce() + Send>` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout] note: trait bound `dyn FnOnce() + Send: Sized` was not satisfied
[INFO] [stdout]   --> src/lib.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<F: FnOnce()> FnBox for F {
[INFO] [stdout]    |      ^            -----     -
[INFO] [stdout]    |      |
[INFO] [stdout]    |      unsatisfied trait bound introduced here
[INFO] [stdout] help: consider relaxing the type parameter's implicit `Sized` bound
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<F: ?Sized + FnOnce()> FnBox for F {
[INFO] [stdout]    |         ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_doc` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7642661b2614986ff6c1b18eb7d7bb13d6a5b20dee8679d29b6d3f9586a8d4c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7642661b2614986ff6c1b18eb7d7bb13d6a5b20dee8679d29b6d3f9586a8d4c1", kill_on_drop: false }`
[INFO] [stdout] 7642661b2614986ff6c1b18eb7d7bb13d6a5b20dee8679d29b6d3f9586a8d4c1
