[INFO] cloning repository https://github.com/adubois/rust-books
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adubois/rust-books" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadubois%2Frust-books", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadubois%2Frust-books'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec5a474deaea1cd47a310d80dc079774b20a44de
[INFO] checking adubois/rust-books against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadubois%2Frust-books" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adubois/rust-books on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adubois/rust-books
[INFO] finished tweaking git repo https://github.com/adubois/rust-books
[INFO] tweaked toml for git repo https://github.com/adubois/rust-books written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/adubois/rust-books already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `http://github.com/SergioBenitez/Pear`
[INFO] [stderr]     Updating git repository `https://github.com/SergioBenitez/derive-utils`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded walkdir v2.2.5
[INFO] [stderr]   Downloaded same-file v1.0.3
[INFO] [stderr]   Downloaded syn v0.15.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 356c49be14a3ee93a87b48807eb731da409d4362eb19bdf663f079454b64887a
[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" "356c49be14a3ee93a87b48807eb731da409d4362eb19bdf663f079454b64887a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "356c49be14a3ee93a87b48807eb731da409d4362eb19bdf663f079454b64887a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "356c49be14a3ee93a87b48807eb731da409d4362eb19bdf663f079454b64887a", kill_on_drop: false }`
[INFO] [stdout] 356c49be14a3ee93a87b48807eb731da409d4362eb19bdf663f079454b64887a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acd130a686930ca29a9aa0e82d77824d838167501763a561f6712ffa908eb13c
[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" "acd130a686930ca29a9aa0e82d77824d838167501763a561f6712ffa908eb13c", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking same-file v1.0.3
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking yansi v0.4.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling pear_codegen v0.1.0 (http://github.com/SergioBenitez/Pear?rev=d221e16dd#d221e16d)
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]    Compiling rocket_codegen_next v0.4.0-dev (https://github.com/SergioBenitez/Rocket#085a1430)
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]    Compiling rocket v0.4.0-dev (https://github.com/SergioBenitez/Rocket#085a1430)
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking filetime v0.2.1
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking walkdir v2.2.5
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.0
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking r2d2 v0.8.2
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]     Checking tokio-io v0.1.9
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking notify v4.0.6
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking toml v0.4.8
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]    Compiling diesel_derives v1.3.0
[INFO] [stderr]    Compiling derive_utils_core v0.1.0 (https://github.com/SergioBenitez/derive-utils?rev=62f361f#62f361fe)
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling derive_utils_codegen v0.1.0 (https://github.com/SergioBenitez/derive-utils?rev=62f361f#62f361fe)
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking diesel v1.3.3
[INFO] [stderr]    Compiling derive_utils v0.1.0 (https://github.com/SergioBenitez/derive-utils?rev=62f361f#62f361fe)
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking dotenv v0.13.0
[INFO] [stderr]    Compiling pear v0.1.0 (http://github.com/SergioBenitez/Pear?rev=d221e16dd#d221e16d)
[INFO] [stderr]     Checking rocket_http v0.4.0-dev (https://github.com/SergioBenitez/Rocket#085a1430)
[INFO] [stdout] error[E0463]: can't find crate for `syntax_pos`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rocket-8bf16d9ca7e90bdc/085a143/core/codegen_next/src/lib.rs:432:1
[INFO] [stdout]     |
[INFO] [stdout] 432 | extern crate syntax_pos;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rocket_codegen_next`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[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" "acd130a686930ca29a9aa0e82d77824d838167501763a561f6712ffa908eb13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd130a686930ca29a9aa0e82d77824d838167501763a561f6712ffa908eb13c", kill_on_drop: false }`
[INFO] [stdout] acd130a686930ca29a9aa0e82d77824d838167501763a561f6712ffa908eb13c