[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] f5c4ba46b5b886f88a76f4a355753dc7a5b99389
[INFO] checking xldenis/creusot against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxldenis%2Fcreusot" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xldenis/creusot on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-2/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" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arraydeque v0.4.5
[INFO] [stderr]   Downloaded datatest-derive v0.6.3
[INFO] [stderr]   Downloaded mktemp v0.4.1
[INFO] [stderr]   Downloaded datatest v0.6.3
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded unescape v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8a40190fb52e852b08b10ac7c4d417f7c9224b0c1ec55dec1ad12da5e29b75f
[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" "a8a40190fb52e852b08b10ac7c4d417f7c9224b0c1ec55dec1ad12da5e29b75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8a40190fb52e852b08b10ac7c4d417f7c9224b0c1ec55dec1ad12da5e29b75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8a40190fb52e852b08b10ac7c4d417f7c9224b0c1ec55dec1ad12da5e29b75f", kill_on_drop: false }`
[INFO] [stdout] a8a40190fb52e852b08b10ac7c4d417f7c9224b0c1ec55dec1ad12da5e29b75f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 0cfc48c0dafeee59907b8896ebe0574d8f9b24e56fd22ae9765257154ed69cc6
[INFO] running `Command { std: "docker" "start" "-a" "0cfc48c0dafeee59907b8896ebe0574d8f9b24e56fd22ae9765257154ed69cc6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.49 (https://github.com/xldenis/syn?branch=spec-lang-2#0e08fccf)
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling datatest v0.6.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[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 dissimilar v1.0.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking heck v0.3.2
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking ena v0.14.0
[INFO] [stderr]     Checking mktemp v0.4.1
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling datatest-derive v0.6.3
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]     Checking pearlite v0.1.0 (/opt/rustwide/workdir/pearlite)
[INFO] [stderr]     Checking creusot-contracts-proc v0.1.0 (/opt/rustwide/workdir/creusot-contracts-proc)
[INFO] [stderr]     Checking creusot v0.1.0 (/opt/rustwide/workdir/creusot)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]  --> creusot/src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | 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`
[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" "0cfc48c0dafeee59907b8896ebe0574d8f9b24e56fd22ae9765257154ed69cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cfc48c0dafeee59907b8896ebe0574d8f9b24e56fd22ae9765257154ed69cc6", kill_on_drop: false }`
[INFO] [stdout] 0cfc48c0dafeee59907b8896ebe0574d8f9b24e56fd22ae9765257154ed69cc6