[INFO] cloning repository https://github.com/rylynchen/rust-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rylynchen/rust-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frylynchen%2Frust-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frylynchen%2Frust-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a25facbe2ad273e24f98cd9c66aa8af705995996
[INFO] checking rylynchen/rust-example against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frylynchen%2Frust-example" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rylynchen/rust-example on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rylynchen/rust-example
[INFO] finished tweaking git repo https://github.com/rylynchen/rust-example
[INFO] tweaked toml for git repo https://github.com/rylynchen/rust-example written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/rylynchen/rust-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.57
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.68
[INFO] [stderr]   Downloaded proc-macro2 v1.0.21
[INFO] [stderr]   Downloaded ipnet v2.3.0
[INFO] [stderr]   Downloaded hashbrown v0.9.0
[INFO] [stderr]   Downloaded web-sys v0.3.45
[INFO] [stderr]   Downloaded bytes v0.5.6
[INFO] [stderr]   Downloaded cookie v0.14.2
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.18
[INFO] [stderr]   Downloaded time-macros-impl v0.1.1
[INFO] [stderr]   Downloaded once_cell v1.4.1
[INFO] [stderr]   Downloaded serde_derive v1.0.116
[INFO] [stderr]   Downloaded publicsuffix v1.5.4
[INFO] [stderr]   Downloaded pin-project-internal v0.4.23
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded hyper v0.13.8
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.68
[INFO] [stderr]   Downloaded h2 v0.2.6
[INFO] [stderr]   Downloaded encoding_rs v0.8.24
[INFO] [stderr]   Downloaded js-sys v0.3.45
[INFO] [stderr]   Downloaded serde v1.0.116
[INFO] [stderr]   Downloaded tokio v0.2.22
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] [stderr]   Downloaded pkg-config v0.3.18
[INFO] [stderr]   Downloaded pin-project v0.4.23
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.1
[INFO] [stderr]   Downloaded indexmap v1.6.0
[INFO] [stderr]   Downloaded net2 v0.2.35
[INFO] [stderr]   Downloaded getrandom v0.1.15
[INFO] [stderr]   Downloaded cookie_store v0.12.0
[INFO] [stderr]   Downloaded tracing-core v0.1.16
[INFO] [stderr]   Downloaded tracing v0.1.19
[INFO] [stderr]   Downloaded const_fn v0.4.2
[INFO] [stderr]   Downloaded time-macros v0.1.0
[INFO] [stderr]   Downloaded cc v1.0.60
[INFO] [stderr]   Downloaded tinyvec v0.3.4
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.68
[INFO] [stderr]   Downloaded socket2 v0.3.15
[INFO] [stderr]   Downloaded standback v0.2.10
[INFO] [stderr]   Downloaded time v0.2.22
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.18
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.68
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.68
[INFO] [stderr]   Downloaded reqwest v0.10.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ab7bd8adc69399e64872e66e427e1f970005900d73cd4d0eceeaec9c0e969d5b
[INFO] running `Command { std: "docker" "start" "-a" "ab7bd8adc69399e64872e66e427e1f970005900d73cd4d0eceeaec9c0e969d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab7bd8adc69399e64872e66e427e1f970005900d73cd4d0eceeaec9c0e969d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7bd8adc69399e64872e66e427e1f970005900d73cd4d0eceeaec9c0e969d5b", kill_on_drop: false }`
[INFO] [stdout] ab7bd8adc69399e64872e66e427e1f970005900d73cd4d0eceeaec9c0e969d5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87314b671e3f1c1ed4b2719ff737d5f2b5a4f36845933214ddd501db84943f50
[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" "87314b671e3f1c1ed4b2719ff737d5f2b5a4f36845933214ddd501db84943f50", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling cookie v0.14.2
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stdout] error[E0277]: the trait bound `read_dir::DirEntry: std::sealed::Sealed` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.22/src/fs/read_dir.rs:240:6
[INFO] [stdout]     |
[INFO] [stdout] 240 | impl DirEntryExt for DirEntry {
[INFO] [stdout]     |      ^^^^^^^^^^^ the trait `std::sealed::Sealed` is not implemented for `read_dir::DirEntry`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "87314b671e3f1c1ed4b2719ff737d5f2b5a4f36845933214ddd501db84943f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87314b671e3f1c1ed4b2719ff737d5f2b5a4f36845933214ddd501db84943f50", kill_on_drop: false }`
[INFO] [stdout] 87314b671e3f1c1ed4b2719ff737d5f2b5a4f36845933214ddd501db84943f50