[INFO] cloning repository https://github.com/xldenis/creusot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xldenis/creusot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxldenis%2Fcreusot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxldenis%2Fcreusot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99b697c29bd85233756aa8a0b31e2b6cd241c9b2
[INFO] checking xldenis/creusot against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxldenis%2Fcreusot" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xldenis/creusot on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/xldenis/creusot
[INFO] finished tweaking git repo https://github.com/xldenis/creusot
[INFO] tweaked toml for git repo https://github.com/xldenis/creusot written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/xldenis/creusot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78e3c5ea0e7739b36ba188fdac7aa5ea7ec6d1a5e52f8639b3fbac7d34207c68
[INFO] running `Command { std: "docker" "start" "-a" "78e3c5ea0e7739b36ba188fdac7aa5ea7ec6d1a5e52f8639b3fbac7d34207c68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78e3c5ea0e7739b36ba188fdac7aa5ea7ec6d1a5e52f8639b3fbac7d34207c68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e3c5ea0e7739b36ba188fdac7aa5ea7ec6d1a5e52f8639b3fbac7d34207c68", kill_on_drop: false }`
[INFO] [stdout] 78e3c5ea0e7739b36ba188fdac7aa5ea7ec6d1a5e52f8639b3fbac7d34207c68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9608f0f800ff95d1eb498bdfe9a807b52eab8e150f44e5fd14b31c496bc008e
[INFO] running `Command { std: "docker" "start" "-a" "e9608f0f800ff95d1eb498bdfe9a807b52eab8e150f44e5fd14b31c496bc008e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.49 (https://github.com/xldenis/syn?branch=spec-lang-2#0e08fccf)
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]     Checking unescape v0.1.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking similar v1.3.0
[INFO] [stderr]     Checking why3tests v0.1.0 (/opt/rustwide/workdir/why3tests)
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking heck v0.3.2
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking why3 v0.1.0 (/opt/rustwide/workdir/why3)
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stderr]     Checking mktemp v0.4.1
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking creusot v0.1.0 (/opt/rustwide/workdir/creusot)
[INFO] [stderr]     Checking creusot-contracts-proc v0.1.0 (/opt/rustwide/workdir/creusot-contracts-proc)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]  --> creusot/src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate rustc_ast;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]  --> creusot/src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate rustc_ast;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `creusot` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `term`
[INFO] [stdout]    --> creusot-contracts-proc/src/lib.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |     let term = format!("{}", quote! {#term});
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_term`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `term`
[INFO] [stdout]    --> creusot-contracts-proc/src/lib.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |     let term = format!("{}", quote! {#term});
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_term`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e9608f0f800ff95d1eb498bdfe9a807b52eab8e150f44e5fd14b31c496bc008e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9608f0f800ff95d1eb498bdfe9a807b52eab8e150f44e5fd14b31c496bc008e", kill_on_drop: false }`
[INFO] [stdout] e9608f0f800ff95d1eb498bdfe9a807b52eab8e150f44e5fd14b31c496bc008e