[INFO] cloning repository https://github.com/futurice/FerrousBueller
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/futurice/FerrousBueller" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffuturice%2FFerrousBueller", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffuturice%2FFerrousBueller'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 021ecc6fc478cb9329386094ff8b7cd7db2b1104
[INFO] checking futurice/FerrousBueller against master#8424f8e8cdf07010967a57584fd647b30e930d4d for pr-120095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffuturice%2FFerrousBueller" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/futurice/FerrousBueller on toolchain 8424f8e8cdf07010967a57584fd647b30e930d4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/futurice/FerrousBueller
[INFO] finished tweaking git repo https://github.com/futurice/FerrousBueller
[INFO] tweaked toml for git repo https://github.com/futurice/FerrousBueller written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/futurice/FerrousBueller 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" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking futurice/FerrousBueller against try#047472f299946caf090d1b5608ae4bd9f0416256+rustflags=-Ddereferencing_mut_binding for pr-120095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffuturice%2FFerrousBueller" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/futurice/FerrousBueller on toolchain 047472f299946caf090d1b5608ae4bd9f0416256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/futurice/FerrousBueller
[INFO] finished tweaking git repo https://github.com/futurice/FerrousBueller
[INFO] tweaked toml for git repo https://github.com/futurice/FerrousBueller written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/futurice/FerrousBueller 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" "+047472f299946caf090d1b5608ae4bd9f0416256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicase v0.1.0
[INFO] [stderr]   Downloaded cookie v0.1.20
[INFO] [stderr]   Downloaded mime v0.0.10
[INFO] [stderr]   Downloaded time v0.1.25
[INFO] [stderr]   Downloaded byteorder v0.3.9
[INFO] [stderr]   Downloaded openssl-sys v0.6.1
[INFO] [stderr]   Downloaded pnacl-build-helper v1.4.0
[INFO] [stderr]   Downloaded typeable v0.1.1
[INFO] [stderr]   Downloaded lazy_static v0.1.10
[INFO] [stderr]   Downloaded num_cpus v0.2.3
[INFO] [stderr]   Downloaded num v0.1.24
[INFO] [stderr]   Downloaded httparse v0.1.1
[INFO] [stderr]   Downloaded gcc v0.3.5
[INFO] [stderr]   Downloaded openssl v0.6.1
[INFO] [stderr]   Downloaded pkg-config v0.3.3
[INFO] [stderr]   Downloaded regex v0.1.30
[INFO] [stderr]   Downloaded url v0.2.31
[INFO] [stderr]   Downloaded libc v0.1.6
[INFO] [stderr]   Downloaded quasi v0.1.9
[INFO] [stderr]   Downloaded libressl-pnacl-sys v2.1.5
[INFO] [stderr]   Downloaded quasi_macros v0.1.9
[INFO] [stderr]   Downloaded serde v0.3.2
[INFO] [stderr]   Downloaded aster v0.2.2
[INFO] [stderr]   Downloaded websocket v0.11.8
[INFO] [stderr]   Downloaded docopt v0.6.63
[INFO] [stderr]   Downloaded hyper v0.3.15
[INFO] [stderr]   Downloaded serde_macros v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24ea382b8a31a227297d8ee0def24a538ebc625e5f72a295b764995b892cc8db
[INFO] running `Command { std: "docker" "start" "-a" "24ea382b8a31a227297d8ee0def24a538ebc625e5f72a295b764995b892cc8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24ea382b8a31a227297d8ee0def24a538ebc625e5f72a295b764995b892cc8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24ea382b8a31a227297d8ee0def24a538ebc625e5f72a295b764995b892cc8db", kill_on_drop: false }`
[INFO] [stdout] 24ea382b8a31a227297d8ee0def24a538ebc625e5f72a295b764995b892cc8db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Ddereferencing_mut_binding" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b774d532a1203d0d5666da5863f1b6085949373240b5b9ce4eb35eb443fd33e
[INFO] running `Command { std: "docker" "start" "-a" "8b774d532a1203d0d5666da5863f1b6085949373240b5b9ce4eb35eb443fd33e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.1.6
[INFO] [stderr]    Compiling gcc v0.3.5
[INFO] [stderr]    Compiling pkg-config v0.3.3
[INFO] [stderr]     Checking rustc-serialize v0.3.14
[INFO] [stderr]     Checking matches v0.1.2
[INFO] [stderr]     Checking lazy_static v0.1.10
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]    Compiling aster v0.2.2
[INFO] [stderr]     Checking typeable v0.1.1
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking unicase v0.1.0
[INFO] [stderr]     Checking httparse v0.1.1
[INFO] [stderr]    Compiling quasi v0.1.9
[INFO] [stderr]     Checking byteorder v0.3.9
[INFO] [stderr]     Checking regex v0.1.30
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/aster-0.2.2/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.14/src/serialize.rs:144:45
[INFO] [stdout]     |
[INFO] [stdout] 144 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/quasi-0.1.9/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quasi` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aster` (lib) due to 2 previous errors
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.14/src/serialize.rs:200:41
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn decode<D: Decoder>(d: &mut D) -> Result<Self, D::Error>;
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Result`
[INFO] [stdout]    --> /rustc/047472f299946caf090d1b5608ae4bd9f0416256/library/core/src/result.rs:502:1
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]     |
[INFO] [stdout] 200 |     fn decode<D: Decoder>(d: &mut D) -> Result<Self, D::Error> where Self: Sized;
[INFO] [stdout]     |                                                                +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0642.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "8b774d532a1203d0d5666da5863f1b6085949373240b5b9ce4eb35eb443fd33e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b774d532a1203d0d5666da5863f1b6085949373240b5b9ce4eb35eb443fd33e", kill_on_drop: false }`
[INFO] [stdout] 8b774d532a1203d0d5666da5863f1b6085949373240b5b9ce4eb35eb443fd33e